Drilldown: Patents

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Patents > Applicant firm: None & CPCs: None & Number of claims: 2-3

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Applicant firm: (Click arrow to add another value)
Applicant type:
Applicant is inventor:
Tech fields:
Airplane (151) · LTA (107) · propulsion (91) · frame (83) · design (82) · Stability (67) · Subsystem (62) · propellers (57) · wings (56) · construction (46) · Airship (45) · navigation (44) · propeller (42) · aerodynamics (40) · whole (38) · balloon (34) · lift (29) · None (28) · rudder (26) · Control (24)
Full specification filed date:
Application number:
None (382)
Granted:
Supplementary to patent:
None (316) · Patent DE-1908-221549 (4) · Patent DE-1909-02-25 Hugo Erdmann (3) · Patent CH-1912-62201 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent DE-1913-287314 (3) · Patent GB-1911-12232‎‎ (3) · Patent FR-1909-403985 (3)
Related to aircraft:
Patent agent:
None (356) · Marks & Clerk (8) · E. Blum & Co. (7) · A. Ritter (5) · Hy. Fairbrother (5) · Haseltine, Lake & Co. (5) · Boult, Wade & Tennant (5) · Abel & Imray (4) · None (4) · H. Kirchhofer (3) · Wilhelm Reinhard (3) · W. P. Thompson & Co. (3)
National tech categories:
HU V/h (113) · None (112) · AT 77d (88) · DK 77 (20) · DE 77 (19) · DE 77h (13) · CH 115 (9) · CH 129b (9) · GB 4 propel & steer (6) · CH 129c (6) · DE 77h.15 (6) · CH 129a (5) · GB 4 with buoyant (4) · DE 77h.6 (4) · DE 77h.5 (4) · AT 37a (4)
IPCs:
None (481) · IPC B64C5/04 (3) · IPC B64B1/06 (2) · IPC B64C11/16 (2) · IPC F24F7/02 (2)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of claims:
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