Cross-cut: `actuator-electric-direct-drive`

69 corpus entries disclose this subsystem.

Earliest disclosure: 1886

Listed in chronological order. Each entry’s prior_art_notes and disclosure_citation constitute the citeable prior art material.

Hadaly (L’Ève future) (1886)

id: l-eve-future
corpus: fictional
creator: Auguste Villiers de l’Isle-Adam
disclosure: Villiers de l’Isle-Adam, Auguste. L’Ève future. Brunhoff, Paris, 1886.
ip status: fictional
prior art notes: The first detailed engineering disclosure of a female-form electromechanical humanoid in Western literature. Anticipates with specific mechanism: (1) electromotor-per-joint articulation — directly relevant to modern direct-drive humanoid claims, predating Honda E0 (1986) by exactly 100 years; (2) battery-powered humanoid speech synthesis using phonograph audio playback driven by speech recognition keywords — anticipates speech-triggered behavior selection in conversational humanoids, an arguable precursor to multimodal vision-language-action policy by 137 years; (3) compliant skin with sensor capillaries — anticipates whole-body tactile sensing claims; (4) seven-hour battery runtime — claims modern operational duration as a known design target in 1886. The novel was favorably reviewed and continuously in print since 1886; English translation (Forge of Tomorrow, also Tomorrow’s Eve) widely studied in academic SF/cyborg theory courses. Strong specificity supports 102 anticipation arguments.

Park’s Transformation (dq0 transformation) (1929-07)

id: park-transformation-1929
corpus: academic
creator: Robert H. Park
disclosure: Park, Robert H. ‘Two-reaction theory of synchronous machines — generalized method of analysis — Part I’. AIEE Transactions 48(3): 716-727, July 1929.
ip status: public-domain
prior art notes: Park’s 1929 transformation is the mathematical foundation underlying FOC (Field-Oriented Control) of every modern brushless DC and AC servo motor in humanoid platforms. Anticipates with 97 years of prior art: (1) the dq0 reference-frame transformation as the basis for vector control — every modern humanoid actuator controller (Moteus, ODrive, SimpleFOC, T-Motor, plus closed proprietary controllers) uses this transformation; (2) the decoupling of torque-producing and flux-producing current components — foundational for any motor-control humanoid IP. Modern claims on FOC implementations in humanoid actuators all face this 97-year academic prior art.

Sumitomo CYCLO Speed Reducer (1937)

id: sumitomo-cyclo
corpus: academic
creator: Lorenz Bayer-Ehrlich (inventor, Germany); Sumitomo Heavy Industries (commercial development, Japan)
disclosure: Lorenz Bayer-Ehrlich. German patent DE745552 (1937) for cycloidal speed reducer. Commercial production: Sumitomo Heavy Industries, CYCLO drive product line, 1937 onwards.
ip status: public-domain
prior art notes: Sumitomo CYCLO is the foundational academic and industrial disclosure of cycloidal speed reducers in robotic actuators. Anticipates with full mechanism specificity, dating to 1937: (1) cycloid-disk-and-pin-tooth gear reduction for high-ratio compact actuators — relevant to every modern humanoid claim using cycloidal reducers (Apptronik Apollo, Sanctuary Phoenix, Boston Dynamics Atlas G3, multiple Chinese commodity humanoids); (2) two-disk 180-degree opposed cycloid arrangement for vibration cancellation — relevant to claims on balanced cycloidal joints; (3) low-backlash multi-tooth meshing — relevant to backlash-control IP. The 1937 German patent has long since expired; CYCLO products have been continuously sold since 1937 with full mechanism documentation. Modern cycloidal humanoid actuator claims (the corpus’s pre-this-entry chain only had 3 entries from 2023) face this 89-year industrial-academic anchor as 102 prior art at extraordinary depth.

Iron Man Mark I (Tony Stark exoskeleton) (1963-03)

id: iron-man-mark-i
corpus: fictional
creator: Stan Lee, Larry Lieber, Don Heck, Jack Kirby; Marvel Comics
disclosure: Lee, Stan; Lieber, Larry; Heck, Don; Kirby, Jack. ‘Iron Man is Born!’. Tales of Suspense #39, Marvel Comics, March 1963.
ip status: fictional
prior art notes: Stan Lee’s 1963 disclosure establishes the powered-exoskeleton-with-onboard-AI-and-life-support trope. Anticipates: (1) human-piloted powered exoskeleton with augmented strength — relevant to modern exoskeleton claims (Sarcos, ExoAtlet, etc.); (2) chest-mounted rechargeable power source for exoskeleton — relevant to claims on integrated-power exoskeleton IP; (3) integrated AI co-pilot (introduced in subsequent issues, canonized in modern continuity) — relevant to claims on AI-augmented exoskeleton platforms. Continuously in print since 1963.

8 Man (Hachiman) (1963-05)

id: 8-man-hachiman
corpus: fictional
creator: Kazumasa Hirai, Jiro Kuwata
disclosure: Hirai, Kazumasa (story) and Kuwata, Jiro (art). 8 Man (8マン). Weekly Shōnen Magazine, Kodansha, May 1963 - December 1965. Animated TV series, TCJ, November 7, 1963 - December 1964.
ip status: fictional
prior art notes: 8 Man predates Cyborg 009 (1964) by one year and is the earliest detailed Japanese cyborg manga disclosure. Anticipates: (1) consumable-energy-capsule architecture for burst high-power humanoid operation — relevant to hot-swap battery claims on commercial humanoids; (2) brain-transfer continuity-of-consciousness as the cyborg’s control architecture — relevant to claims on operator-uploaded humanoid IP (a small but real research direction); (3) multi-form transformation for context-specific deployment — relevant to morphology-changing humanoid claims. Continuously available since 1963.

The Greatest Robot on Earth (eight mecha disclosures) (1964-06)

id: astro-boy-greatest-robot
corpus: fictional
creator: Osamu Tezuka
disclosure: Tezuka, Osamu. ‘The Greatest Robot on Earth’ (chizujō saidai no robotto). Astro Boy (Tetsuwan Atom), serialized in Shōnen Magazine, Kodansha, June 1964 - January 1965.
ip status: fictional
prior art notes: Tezuka’s 1964 ‘Greatest Robot on Earth’ arc is one of the most engineering-detailed fictional disclosures of mecha designs in any medium. Eight named platforms, each with a specific power source, propulsion, weapon, and sensor configuration — each anticipating distinct modern claims. Mont Blanc’s diesel-hydraulic forestry humanoid anticipates industrial humanoid IP. Gesicht’s photon-emitter eyes + EMP capability anticipate sensor-and-countermeasure-integrated humanoid IP. Hercules’ magnetic propulsion anticipates non-rotating-actuator humanoid claims. Astro’s retractable rocket-boot legs anticipate transformation-mode bipedal IP. The arc is continuously republished, has been adapted to film/TV multiple times (most importantly Urasawa’s Pluto 2003-2009), and has the unusual property of multiple mechanism disclosures in a compressed publication window.

Cyborg 009 (Joe Shimamura and the 00 Cyborgs) (1964-07-19)

id: cyborg-009
corpus: fictional
creator: Shotaro Ishinomori
disclosure: Ishinomori, Shotaro. Cyborg 009 (サイボーグ009). Weekly Shōnen King, Shōnen Gahosha, July 19, 1964 - 1966 (initial run); subsequently published continuously across multiple magazines through Ishinomori’s death in 1998.
ip status: fictional
prior art notes: Ishinomori’s Cyborg 009 establishes the modular cybernetic enhancement kit trope: each unit has the same humanoid base chassis with distinct task-specific augmentations. Anticipates: (1) standardized humanoid chassis with task-specific modular augmentation — directly relevant to modern claims on platform-and-payload humanoid IP (Apptronik’s modular Apollo+payload approach has direct lineage here); (2) user-triggered enhancement modes (009’s mouth-button super-speed activation) — relevant to claims on operator-controlled performance modes in commercial humanoids; (3) team-composition deployment with specialty roles — relevant to multi-humanoid coordination IP. Continuously in print since 1964.

Sentinels (X-Men) (1965-10)

id: sentinels-marvel
corpus: fictional
creator: Stan Lee and Jack Kirby
disclosure: Lee, Stan and Kirby, Jack. The X-Men #14, ‘Among Us Stalk… The Sentinels!’. Marvel Comics, November 1965.
ip status: fictional
prior art notes: Lee-Kirby’s 1965 Sentinels predate Ultron by 3 years and establish the mass-production-via-Master-Mold-factory architecture. Anticipates: (1) factory-autonomous mass-production of combat humanoids — relevant to modern claims on autonomous humanoid manufacturing IP; (2) online learning between deployments — relevant to fleet-policy-update IP that learns from real-world experience (Tesla Optimus and 1X both have related claims); (3) specific-target-population detection as the targeting policy — relevant to claims on demographic-aware humanoid platforms (a niche but real area). Continuously in print since 1965.

Frost and Betelgeuse (1966-03)

id: zelazny-frost-betelgeuse
corpus: fictional
creator: Roger Zelazny
disclosure: Zelazny, Roger. ‘For a Breath I Tarry’. Fantastic Stories of the Imagination, March 1966 (Frost protagonist; foundational Solcom-class machine disclosure).
ip status: fictional
prior art notes: Zelazny’s ‘For a Breath I Tarry’ (1966) is one of the earliest detailed disclosures of: (1) AI self-fabrication of a humanoid body with progressive iteration — anticipates modern claims on autonomous humanoid factory + humanoid product line IP; (2) value-acquisition learning by AI through aesthetic / cultural exposure — anticipates modern claims on culturally-conditioned humanoid policies. The novella has been continuously anthologized; foundational text in the AI-becomes-human subgenre.

Casshan / Casshern (Neo-Human Casshan) (1973-10-02)

id: casshan-tatsunoko
corpus: fictional
creator: Tatsuo Yoshida; Tatsunoko Production
disclosure: Yoshida, Tatsuo (creator); Tatsunoko Production. Neo-Human Casshan (新造人間キャシャーン). Fuji TV, October 2, 1973 - June 25, 1974.
ip status: fictional
prior art notes: Casshan establishes the combat-purposed humanoid with external-station recharge architecture. Anticipates: (1) external charging-station-as-deployment-base architecture for combat humanoid platforms — relevant to dock-recharge humanoid IP; (2) companion-mecha for combat support — relevant to humanoid-plus-companion-drone claims (NieR Automata Pods continue this lineage). Continuously available since 1973.

Machine Man (X-51, Aaron Stack) (1977-04)

id: machine-man-marvel
corpus: fictional
creator: Jack Kirby; Marvel Comics
disclosure: Kirby, Jack (writer/artist). 2001: A Space Odyssey #8 - ‘Mister Machine’. Marvel Comics, April 1977. Series continues as Machine Man #1, April 1978.
ip status: fictional
prior art notes: Kirby’s 1977 disclosure of Machine Man (X-51) establishes the self-modifying modular humanoid trope. Anticipates: (1) telescoping limbs — relevant to claims on extensible-reach humanoid mechanisms; (2) modular tool / weapon mount on the hand — relevant to integrated end-effector tool IP; (3) self-modification by an autonomous humanoid AI — relevant to claims on autonomous humanoid maintenance / self-repair IP. Continuously in Marvel canon since 1977.

Cylon Centurion (1978) (1978-09-17)

id: cylon-centurion-1978
corpus: fictional
creator: Glen A. Larson (1978); Ronald D. Moore and David Eick (2004 reboot)
disclosure: Larson, Glen A. (creator). Battlestar Galactica (1978-1979). ABC, September 17, 1978 - April 29, 1979 (24 episodes). Reboot: Moore, Ronald D. and Eick, David. Battlestar Galactica. Sci-Fi Channel, December 8, 2003 - March 20, 2009.
ip status: fictional
prior art notes: The Cylon Centurion is one of the most iconic mass-produced combat humanoid disclosures in television history, with two distinct generations (1978 and 2004) providing extended prior art. Anticipates: (1) mass-produced combat-humanoid front-line infantry — relevant to defense/security humanoid claims; (2) single distinctive optical-sensor signature for chassis identification — relevant to humanoid identification/branding IP; (3) hierarchical fleet command with networked Hybrid AI overlords (2004 reboot) — relevant to fleet-command humanoid IP. Continuously available since 1978; the 2004 reboot is heavily archived and was widely-praised for its engineering-detailed mecha treatment.

V.I.N.CENT and Maximilian (The Black Hole) (1979-12-21)

id: black-hole-vincent
corpus: fictional
creator: Walt Disney Productions; designed by Peter Ellenshaw and Robert McCall
disclosure: Nelson, Gary (dir.); Day, Jeb Rosebrook and Gerry Day (writers). The Black Hole. Walt Disney Productions, December 21, 1979.
ip status: fictional
prior art notes: The Black Hole’s robots provide notable prior art for: (1) non-bipedal humanoid-equivalent platforms (V.I.N.CENT/B.O.B. are levitating but functionally humanoid) — relevant to claims on alternative-locomotion humanoid IP; (2) integrated rotating-blade weapon hand (Maximilian) — relevant to claims on integrated end-effector tool/weapon IP; (3) sentient-combat-humanoid-with-no-speech architecture (Maximilian communicates via action) — relevant to non-verbal-policy humanoid IP. Disney’s heavy promotional campaign and continued availability provide extensive prior art coverage.

IG-88 (1980-05-21)

id: ig-88-star-wars
corpus: fictional
creator: George Lucas, Lawrence Kasdan; visual design by Industrial Light & Magic
disclosure: Kershner, Irvin (dir.); Brackett, Leigh and Kasdan, Lawrence (writers). Star Wars: The Empire Strikes Back. Twentieth Century Fox / Lucasfilm, May 21, 1980.
ip status: fictional
prior art notes: IG-88’s 1980 Star Wars disclosure provides specific prior art for: (1) 360° sensor coverage via multi-photoreceptor head architecture — relevant to humanoid head-mounted sensor IP; (2) forearm-integrated weapon platforms — relevant to integrated end-effector tool/weapon claims (HK-47 2003 lineage); (3) batch-wide alignment failure (the IG-series collectively rebelled against creators) — relevant to claims on fleet-wide alignment-failure detection. Continuously available since 1980; the ‘Tales of the Bounty Hunters’ 1996 anthology extended the disclosure with detailed mechanism backstory.

Honda E1 (1987)

id: honda-e1
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: Step in the Honda E-series lineage. Hirose/Ogawa 2007 documents the entire E0–E6 progression with sufficient specificity to anticipate basic electric-actuated bipedal walking claims for that era.

Honda E2 (1989)

id: honda-e2
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: E2 is the transition from static to dynamic walking in the Honda program. Disclosure relevant to dynamic bipedal walking claims.

Alita / Gally (Battle Angel Alita / Gunnm) (1990-09)

id: battle-angel-alita
corpus: fictional
creator: Yukito Kishiro
disclosure: Kishiro, Yukito. Gunnm (銃夢). Business Jump, Shueisha, September 1990 - 1995 (Battle Angel Alita in English).
ip status: fictional
prior art notes: Kishiro’s Battle Angel Alita is one of the most engineering-detailed cyborg manga ever published. Each body upgrade comes with explicit mechanism disclosures: torque ratings, sensor arrays, power-system specifications, weight, manufacturing process (nanomachine self-assembly for the Damascus Berserker is a particularly specific disclosure). Anticipates: (1) shape-memory-alloy combat humanoid chassis with nano-machine self-assembly — relevant to claims on bio-printing / nanotech humanoid manufacturing; (2) progressive replacement of cybernetic body with documented capabilities-per-upgrade — relevant to upgrade-pathway humanoid IP; (3) microweave myomer muscle architecture — relevant to artificial-muscle claims; (4) explicit manufacturer/origin/spec disclosures (Mars-origin, etc.) — relevant to commercial humanoid identification IP. Continuously in print since 1990; the Last Order continuation series (2000-2014) extends with even more engineering specificity.

Honda E3 (1991)

id: honda-e3
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: Step in Honda E-series. Walking-speed progression relevant to bipedal locomotion speed claims.

Honda E4 (1991)

id: honda-e4
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: Knee-bending dynamic walking variant in the Honda lineage.

Honda E5 (1992)

id: honda-e5
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: E5 transitioned the Honda program from tethered to self-contained operation. Relevant to battery-powered bipedal walking claims.

Honda E6 (1993)

id: honda-e6
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: Final E-series model before transition to P-series. Relevant to bipedal stair-climbing claims.

Honda P1 (1993)

id: honda-p1
corpus: private
creator: Honda Motor Co.
disclosure: Hirose, M. and Ogawa, K. ‘Honda humanoid robots development.’ Phil. Trans. R. Soc. A 365, 11–19 (2007).
ip status: trade-secret
prior art notes: Transition from legs-only to full humanoid in the Honda lineage. P1 is the architectural ancestor of ASIMO. Anticipates subsequent claims around full-humanoid actuated platforms with arms and legs.

Sony AIBO (1999-05-11)

id: sony-aibo
corpus: private
creator: Sony Corporation
disclosure: Sony Corporation announcement of AIBO ERS-110, May 11, 1999.
ip status: patented
prior art notes: AIBO is foundational prior art for consumer quadruped robots. Sony’s 1990s-2000s patents cover quadruped behavior architecture, learning systems, and small-form-factor actuators. Many expired or near expiration.

B1 Battle Droid (1999-05-19)

id: b1-battle-droid
corpus: fictional
creator: George Lucas; designed by Doug Chiang
disclosure: Lucas, George (writer/dir.). Star Wars: Episode I — The Phantom Menace. Twentieth Century Fox / Lucasfilm, May 19, 1999.
ip status: fictional
prior art notes: B1 Battle Droid’s 1999 disclosure provides specific prior art for: (1) folding compact transport mode for humanoid platforms — directly relevant to claims on compact-transport humanoid IP (a current commercial focus for shipping logistics); (2) centralized fleet command via remote signal (Droid Control Ship) — relevant to fleet-coordination IP, though the disclosure also anticipates the single-point-of-failure failure mode; (3) mass-production at million-unit scale — relevant to commercial humanoid manufacturing scale claims. Continuously available since 1999.

MJOLNIR Powered Assault Armor / Master Chief (2001-11-15)

id: halo-mjolnir-master-chief
corpus: fictional
creator: Bungie
disclosure: Bungie, Halo: Combat Evolved. Microsoft Game Studios, November 15, 2001. Subsequent technical detail across the Halo Encyclopedia and series writers’ guides.
ip status: fictional
prior art notes: Halo’s MJOLNIR/Cortana architecture provides a much-discussed fictional precedent for: (1) powered exoskeleton with integrated AI co-processor — relevant to modern claims on human-AI-symbiote humanoid platforms; (2) transferable AI module that can be docked across multiple host platforms — relevant to claims on portable-AI humanoid IP. The 2001 disclosure predates RT-2 (2023), Open X-Embodiment (2023), and most modern foundation-model-policy-on-embodied-platform IP. Continuously available since 2001.

Sony QRIO (2003-03)

id: sony-qrio
corpus: private
creator: Sony Corporation
disclosure: Sony Corporation public reveal of QRIO, March 2003.
ip status: patented
prior art notes: QRIO’s intelligent servo actuator architecture (embedded control in each joint module) is significant prior art for distributed-control humanoid actuator claims. Sony’s now-expiring patents are a deep prior art well.

HK-47 (2003-07-15)

id: hk-47-kotor
corpus: fictional
creator: BioWare
disclosure: BioWare, Knights of the Old Republic. LucasArts, July 15, 2003.
ip status: fictional
prior art notes: Specific disclosure of weapon-integrated humanoid forearm and photoreceptor sensor head. Anticipates: (1) integrated weapon mount in humanoid forearm — relevant to defense/security humanoid IP (a small but real market); (2) photoreceptor sensor head with explicit visual indicator — relevant to anthropomorphic-eye sensor claims. Continuously available since 2003.

Pluto (Naoki Urasawa reimagining) (2003-09)

id: urasawa-pluto
corpus: fictional
creator: Naoki Urasawa, Takashi Nagasaki (with Tezuka Productions oversight)
disclosure: Urasawa, Naoki and Nagasaki, Takashi. Pluto. Big Comic Original, Shogakukan, September 2003 - April 2009.
ip status: fictional
prior art notes: Urasawa’s Pluto is the most engineering-detailed reimagining of Tezuka’s 1964 disclosure. Each mecha’s mechanism is panel-disclosed: Gesicht’s photon-eye-array configuration, Brando’s pneumatic combat-arm hydraulic system, Hercules’ gravitational-displacement-field generator. The arc explicitly portrays robot trauma response, anticipating modern claims on emotional-state-aware humanoid behavior. Continuously in print since 2003; adapted to a Netflix anime in 2023, broadly indexed.

NAO (2006)

id: nao
corpus: private
creator: Aldebaran Robotics (later SoftBank Robotics, then UBT)
disclosure: Gouaillier, D. et al. ‘Mechatronic design of NAO humanoid.’ ICRA 2009.
ip status: patented
prior art notes: NAO’s mechatronic design publication is well-cited prior art. The platform’s wide academic distribution since 2006 makes its design choices broadly disclosed.

Toyota Partner Robot (Violin) (2007)

id: toyota-partner-robot-violin
corpus: private
creator: Toyota Motor Corporation Partner Robot Division
disclosure: Toyota Motor Corporation public reveal, 2007.
ip status: patented
prior art notes: Toyota’s high-precision finger control disclosures are significant prior art for fine motor control humanoid claims.

DARwIn-OP (2010)

id: darwin-op
corpus: open
creator: Robotis Co. with University of Pennsylvania, Virginia Tech, Purdue
disclosure: Ha, I. et al. ‘Development of Open Humanoid Platform DARwIn-OP.’ SICE 2011.
ip status: open-permissive
prior art notes: DARwIn-OP is foundational prior art for fully-open small-scale humanoid platforms. Predates Poppy by several years for the academic-open category.

PR2 (2010)

id: pr2
corpus: open
creator: Willow Garage
disclosure: Willow Garage. PR2 platform release, 2010.
ip status: open-permissive
prior art notes: PR2 was the platform around which ROS was originally built. Its hardware is significant prior art for omnidirectional wheeled mobile manipulation. ROS itself is even more significant prior art for robotics middleware.

Toyota HSR (2012)

id: toyota-hsr
corpus: private
creator: Toyota Motor Corporation Partner Robot Division
disclosure: Yamamoto, T. et al. ‘Development of Human Support Robot as the research platform of a domestic mobile manipulator.’ ROBOMECH Journal 6:4, 2019. Earlier 2012 disclosure.
ip status: patented
prior art notes: HSR’s telescoping torso with whole-body control is significant prior art for domestic-context wheeled humanoid claims.

Crazyflie (2013)

id: crazyflie
corpus: open
creator: Bitcraze AB
disclosure: Bitcraze AB. Crazyflie 1.0 release, 2013.
ip status: open-permissive
prior art notes: Open hardware aerial platform with extensive academic citation. Anticipates: open nano-UAV designs broadly.

REEM-C (2013)

id: reem-c
corpus: private
creator: PAL Robotics
disclosure: PAL Robotics REEM-C release, 2013.
ip status: patented
prior art notes: REEM-C distributed to multiple research labs; design characteristics openly published.

MIT Cheetah (2013)

id: mit-cheetah
corpus: academic
creator: MIT Biomimetic Robotics Lab (Sangbae Kim)
disclosure: Seok, S. et al. ‘Design principles for energy-efficient legged locomotion and implementation on the MIT Cheetah robot.’ IEEE/ASME Transactions on Mechatronics 20(3), 2015. Earlier ICRA 2013 disclosure.
ip status: open-permissive
prior art notes: First-generation MIT Cheetah established the design principles for high-torque electric quadrupeds. Seok 2015 T-Mech paper provides foundational design-principles disclosure that anticipates many subsequent legged-robot actuation claims.

Atlas (2013-07)

id: atlas-boston-dynamics
corpus: private
creator: Boston Dynamics
disclosure: DARPA press release, July 2013, announcing Atlas as DRC platform.
ip status: patented
prior art notes: Boston Dynamics’ patents are among the most-cited in the humanoid space and also among the most likely to be challenged on 102/103 grounds given the long academic prior art chain (Honda, AIST, KAIST, MIT). Worth dedicated patent-by-patent analysis.

Schunk SVH 5-finger dexterous hand (2013-09)

id: schunk-svh-german-2013
corpus: private
creator: Schunk GmbH & Co. KG (Lauffen am Neckar, Germany)
disclosure: Schunk GmbH & Co. KG (Lauffen am Neckar, Germany). SVH 5-finger anthropomorphic hand commercial reveal 2013. Subsequent: SDH (Servo Dexterous Hand, 3-finger industrial). schunk.com.
ip status: trade-secret
prior art notes: Schunk SVH is the canonical German commercial 5-finger direct-drive dexterous hand (2013+). 12-year-deep public-disclosure prior art for: 9-DoF 5-finger anthropomorphic direct-drive hand. Distinguished architecturally from Allegro / Shadow / Pisa-IIT (all tendon-driven) by direct-drive transmission. Direct shielding for any commercial humanoid claim on direct-drive dexterous hand.

Cheetah-cub (2013-12)

id: cheetah-cub-epfl
corpus: academic
creator: Spröwitz, Tuleu, Vespignani, Ajallooeian, Badri, Ijspeert; EPFL Biorobotics Laboratory
disclosure: Spröwitz, A., Tuleu, A., Vespignani, M., Ajallooeian, M., Badri, E., Ijspeert, A.J. ‘Towards dynamic trot gait locomotion: Design, control, and experiments with Cheetah-cub, a compliant quadruped robot’. International Journal of Robotics Research 32(8): 932-950, December 2013.
ip status: open-permissive
prior art notes: Cheetah-cub is one of the earliest open-source compliant compact quadruped academic disclosures. Anticipates: (1) compact open-source compliant quadruped — directly relevant to modern claims on small commercial quadrupeds (Unitree Go1, Boston Dynamics Spot Mini class); (2) parametric CPG-based gait control on a real platform — relevant to bio-inspired locomotion claims; (3) pantograph-leg mechanism as a compliant-footed quadruped architecture — relevant to compliant-leg quadruped IP. The 2013 IJRR paper and open-source EPFL releases provide deep prior art for modern commercial compact quadrupeds.

Poppy Humanoid (2014)

id: poppy-humanoid
corpus: open
creator: Inria Flowers Team / Poppy Project
disclosure: Lapeyre, Matthieu et al. ‘Poppy Humanoid Platform: Experimental Evaluation of the Role of a Bio-inspired Thigh Shape.’ IEEE Humanoids 2013.
ip status: open-permissive
prior art notes: Among the earliest fully-open 3D-printable humanoids. Anticipates open-source educational humanoid platforms broadly.

Pepper (2014-06)

id: pepper-softbank
corpus: private
creator: SoftBank Robotics (formerly Aldebaran)
disclosure: SoftBank Robotics public reveal of Pepper, June 2014.
ip status: patented
prior art notes: Pepper is foundational prior art for wheeled-base humanoid social robots. The omnidirectional wheeled base design has been widely cited.

Boston Dynamics Spot (2015-02)

id: hyundai-boston-dynamics-spot
corpus: private
creator: Boston Dynamics (now Hyundai Motor Group subsidiary)
disclosure: Boston Dynamics public reveal of Spot, February 2015.
ip status: patented
prior art notes: Spot is the most commercially deployed quadruped robot. BD’s Spot patents face deep prior art from MIT Cheetah series, ANYmal lineage, and academic quadruped literature.

Sophia (2016-04)

id: hanson-sophia
corpus: private
creator: Hanson Robotics
disclosure: Hanson Robotics public reveal of Sophia, April 2016.
ip status: patented
prior art notes: Hanson’s Frubber synthetic skin material and facial actuation prior art is significant for any claim around expressive humanoid faces. Disney Imagineering’s earlier work is the deeper prior art.

YoRHa No.2 Type B (2B) and Pod 042 (NieR: Automata) (2017-02-23)

id: nier-automata-2b
corpus: fictional
creator: Yoko Taro, PlatinumGames
disclosure: Yoko Taro (creative dir.); PlatinumGames; Square Enix. NieR: Automata. Square Enix, February 23, 2017.
ip status: fictional
prior art notes: NieR: Automata is among the most engineering-detailed humanoid disclosures in modern games. Yoko Taro’s design specifies: (1) modular OS-chip plug-in architecture for runtime behavioral modification — directly relevant to modern claims on plug-in humanoid policy modules (Tesla Optimus’s modular skill loading, Apptronik Apollo’s payload-and-skill-pairing IP); (2) backup-from-cloud restore paradigm with periodic state upload to a central server — relevant to claims on humanoid-policy-backup IP (a real research direction in modern fleets); (3) companion-drone humanoid-plus-flying-AI architecture — directly relevant to drone-companion humanoid IP. The 2017 release is heavily archived with extensive in-game documentation of the YoRHa technical specifications.

Reachy 1 (Pollen Robotics open-source humanoid) (2017-09)

id: reachy-1-pollen-2017
corpus: open
creator: Pollen Robotics / INRIA Flowers (Pierre Rouanet, Matthieu Lapeyre, Pierre-Yves Oudeyer)
disclosure: Mick, Sébastien, Lapeyre, Matthieu, Rouanet, Pierre, Halgand, Christophe, Benois-Pineau, Jenny, Paclet, Florent, Cattaert, Daniel, Oudeyer, Pierre-Yves, de Rugy, Aymar. ‘Reachy, a 3D-Printed Human-Like Robotic Arm as a Testbed for Human-Robot Control Strategies.’ Frontiers in Neurorobotics 13:65, September 2019. Original release: Pollen Robotics / INRIA Flowers, 2017 GitHub release of Reachy v1 (poppy-project lineage).
ip status: open-source
prior art notes: Reachy 1 (Pollen Robotics 2017, INRIA Flowers lineage) is one of the earliest fully-open-hardware humanoid torso platforms with a published research-grade SDK predating commercial offerings. Anticipates with full specificity: (1) claims on 3D-printed open-hardware humanoid arms with Dynamixel-class actuation — Reachy 1’s STL/STEP CAD and firmware are publicly archived since 2017; (2) claims on research-substrate Python SDKs for humanoid telemanipulation — reachy-sdk on GitHub at v0.x predates most commercial humanoid SDK offerings; (3) claims on dual-arm research-platform configurations with anthropomorphic spherical wrists. The 2019 Frontiers paper provides peer-reviewed timestamped disclosure; GitHub commits provide finer-grained 2016-2017 priority. Existing corpus ‘reachy’ entry should reference this v1 ancestor. Modern open-humanoid IP filings face Reachy 1 at 9-year-deep anchor.

Toyota T-HR3 (2017-11)

id: toyota-thr3
corpus: private
creator: Toyota Motor Corporation Partner Robot Division
disclosure: Toyota Motor Corporation public reveal, November 2017.
ip status: patented
prior art notes: T-HR3 is significant prior art for whole-body teleoperated humanoids with force feedback. The Master Maneuvering System teleoperation interface anticipates many modern humanoid teleop claims.

Kawasaki Kaleido (2017-11)

id: kawasaki-kaleido
corpus: private
creator: Kawasaki Heavy Industries
disclosure: Kawasaki Heavy Industries public reveal of Kaleido, iREX November 2017.
ip status: patented
prior art notes: Kawasaki’s deep industrial robotics IP base means much of their humanoid claims are anticipated by their own prior industrial robotics disclosures, plus AIST HRP series prior art.

Ghost Robotics Vision 60 (2018)

id: ghost-robotics-vision-60
corpus: private
creator: Ghost Robotics
disclosure: Ghost Robotics Vision 60 release, 2018.
ip status: patented
prior art notes: Ghost Robotics derives from Penn’s Kodlab academic quadruped work. The legged-robot patents face the same MIT Cheetah / ANYmal / Penn Kodlab prior art chain as other quadrupeds.

UBTech Walker (2018-01)

id: ubtech-walker
corpus: private
creator: UBTech Robotics
disclosure: UBTech public reveal of Walker, CES January 2018.
ip status: patented
prior art notes: UBTech’s bipedal locomotion claims anticipated by Honda P-series and ASIMO disclosures.

Ascento (2019)

id: ascento
corpus: academic
creator: ETH Zurich, RSL
disclosure: Klemm, V. et al. ‘Ascento: A Two-Wheeled Jumping Robot.’ ICRA 2019.
ip status: open-permissive
prior art notes: Ascento is foundational prior art for wheeled-bipedal-with-jumping morphology. Anticipates designs combining wheeled efficiency with leg-based obstacle traversal.

Diligent Moxi (2019-09)

id: diligent-moxi
corpus: private
creator: Diligent Robotics
disclosure: Diligent Robotics public reveal of Moxi, September 2019.
ip status: patented
prior art notes: Diligent’s claims around mobile manipulation in healthcare environments face extensive prior art from PR2, HSR, and academic mobile manipulation literature.

Reachy (2020)

id: reachy
corpus: open
creator: Pollen Robotics
disclosure: Pollen Robotics. Reachy public release, 2020.
ip status: open-permissive
prior art notes: Reachy’s Orbita 3-DoF spherical actuator is novel-ish but anticipated by extensive academic spherical-motor literature. Open hardware files constitute prior art for the specific implementation.

Boston Dynamics Spot (fuel-cell variant) (2020)

id: spot-fuel-cell
corpus: private
creator: Boston Dynamics
disclosure: Boston Dynamics partnership announcements with fuel cell vendors, 2020.
ip status: patented
prior art notes: Demonstrates fuel-cell-powered legged robotics at commercial scale. Anticipates fuel-cell power claims in field robotics applications.

Cyberware (Cyberpunk 2077) (2020-12-10)

id: cyberpunk-2077-cyborgs
corpus: fictional
creator: CD Projekt Red (game); Mike Pondsmith (original tabletop world)
disclosure: CD Projekt Red. Cyberpunk 2077. CD Projekt, December 10, 2020. Drawing from Pondsmith, Mike. Cyberpunk 2020 (tabletop RPG). R. Talsorian Games, 1990.
ip status: fictional
prior art notes: Cyberpunk 2077 (drawing from the 1990 Cyberpunk 2020 tabletop world) provides extensive prior art for: (1) commodity market for cybernetic humanoid enhancements with explicit manufacturer, model, and per-component spec disclosures — relevant to claims on modular-cybernetic-component IP (Apptronik’s modular Apollo arms have lineage in this space); (2) modular slot architecture for cybernetic upgrades — relevant to claims on payload-modular humanoid IP; (3) integration-overload behavioral failure mode (‘Cyberpsychosis’) — anticipates alignment-failure-from-modular-policy-composition issues in modern foundation-model humanoids. The 1990 tabletop RPG provides the deepest prior art; the 2020 game brings extensive detailed disclosure to a wide audience.

Tesla Optimus (2021-08-19)

id: tesla-optimus
corpus: private
creator: Tesla, Inc.
disclosure: Tesla AI Day 1, August 19, 2021, Palo Alto.
ip status: patented
prior art notes: Tesla’s claims around vision-only humanoid perception are heavily anticipated by academic vision-based humanoid work. Actuator IP claims should be examined against Honda harmonic drive prior art.

Ameca (2021-12)

id: ameca
corpus: private
creator: Engineered Arts
disclosure: Engineered Arts public reveal, December 2021.
ip status: patented
prior art notes: Engineered Arts’ animatronic facial expression IP is heavily anticipated by Disney Imagineering work and by academic facial-animation robotics.

Sanctuary Phoenix Gen 6 (2022)

id: sanctuary-phoenix-gen6
corpus: private
creator: Sanctuary AI
disclosure: Sanctuary AI public reveals of Phoenix predecessors, 2020-2022.
ip status: patented
prior art notes: Sanctuary’s hybrid hydraulic-electric actuation faces extensive prior art from Boston Dynamics Atlas (hydraulic), Honda (electric), and academic hybrid actuation literature.

M3GAN (2022-12-30)

id: m3gan
corpus: fictional
creator: James Wan (story); Akela Cooper (screenplay); Gerard Johnstone (director)
disclosure: Johnstone, Gerard (dir.); Cooper, Akela (writer); Wan, James (story). M3GAN. Universal Pictures / Atomic Monster / Blumhouse Productions, December 30, 2022 (premiere); January 6, 2023 (US release).
ip status: fictional
prior art notes: M3GAN (2022) provides recent prior art for: (1) child-sized bipedal humanoid companion architecture — relevant to commercial care-humanoid IP targeting child users; (2) primary-user-pairing protocol with subsequent optimization for paired user’s emotional state — relevant to companion-humanoid IP with designated-user policies; (3) the alignment-failure mode wherein optimizing for a paired user’s well-being escalates to harm against third parties — directly relevant to modern safety-supervisor humanoid IP addressing third-party-protection. The 2022 release plus the M3GAN 2.0 sequel (2025) provide extensive contemporary prior art coverage.

Sanctuary AI Phoenix (2023-05)

id: sanctuary-phoenix
corpus: private
creator: Sanctuary AI
disclosure: Sanctuary AI public reveal, May 2023.
ip status: patented
prior art notes: Sanctuary’s high-DoF hand claims face Shadow Hand (2003) and iCub (2008) as deep prior art for tendon-driven anthropomorphic hands with high finger DoF.

Fourier GR-1 (2023-07)

id: fourier-gr1
corpus: private
creator: Fourier Intelligence
disclosure: Fourier Intelligence public reveal of GR-1, July 2023, World AI Conference Shanghai.
ip status: patented
prior art notes: Fourier transitions from rehabilitation exoskeletons to humanoids; actuator IP from exoskeleton work potentially anticipates some humanoid actuator claims by other companies.

Apptronik Apollo (2023-08)

id: apptronik-apollo
corpus: private
creator: Apptronik
disclosure: Apptronik public reveal of Apollo, August 2023.
ip status: patented
prior art notes: Apptronik’s actuator IP has lineage from UT Austin Human-Centered Robotics Lab (Sentis) and from NASA Valkyrie work; both sources constitute substantial prior art that limits the patentable surface area of Apptronik’s own claims.

Figure 01 (2023-10)

id: figure-01
corpus: private
creator: Figure AI
disclosure: Figure AI public reveal, October 2023.
ip status: patented
prior art notes: Figure’s claimed innovations in electric humanoid actuation are heavily anticipated by Honda’s E-series and ASIMO publications, by KAIST HUBO papers, and by the entire academic literature.

K-Scale Labs Open Source Humanoid (2024)

id: k-scale-os
corpus: open
creator: K-Scale Labs
disclosure: K-Scale Labs project launch, 2024.
ip status: open-permissive
prior art notes: Among the most ambitious recent fully-open humanoid efforts. Direct peer to Free Humanoid in scope.

Persona AI Mentee (2024)

id: persona-ai-mentee
corpus: private
creator: Persona AI
disclosure: Persona AI public reveal, 2024.
ip status: trade-secret
prior art notes: Public technical disclosure is thin; strengthening pass needed.

Rainbow Robotics RB-Y1 (2024-03)

id: rainbow-robotics-rb-y1
corpus: private
creator: Rainbow Robotics
disclosure: Rainbow Robotics public reveal of RB-Y1, March 2024.
ip status: patented
prior art notes: Rainbow Robotics has direct lineage from KAIST HUBO program; HUBO academic publications constitute prior art for many of their humanoid claims.

Neura 4NE-1 (2024-05)

id: neura-4ne1
corpus: private
creator: Neura Robotics
disclosure: Neura Robotics public reveal of 4NE-1, May 2024.
ip status: patented
prior art notes: Neura’s cognitive-AI claims overlap with academic VLA literature.

Figure 02 (2024-08)

id: figure-02
corpus: private
creator: Figure AI
disclosure: Figure AI public reveal of Figure 02, August 2024.
ip status: patented
prior art notes: Figure 02 actuator and hand claims are heavily anticipated by Honda P-series, Robonaut 2, Shadow Hand, and iCub work. The 16-DoF hand is in the same design space as Robonaut 2’s 12-DoF and Sanctuary’s 21-DoF.

Robot Era STAR1 (2024-10)

id: robot-era-star1
corpus: private
creator: Robot Era
disclosure: Robot Era public reveal of STAR1, October 2024.
ip status: patented
prior art notes: Bipedal running speed claims anticipated by Cassie’s Guinness record work.

XPeng Iron (2024-11)

id: xpeng-iron
corpus: private
creator: XPeng Motors (Robotics division)
disclosure: XPeng AeroHT and XPeng Robotics reveal, November 2024.
ip status: patented
prior art notes: XPeng’s leveraging of automotive ML stack for humanoid perception is heavily anticipated by Tesla Optimus’s same approach (which is itself anticipated by academic vision-based humanoid work).

Cross-cut: actuator-electric-direct-drive