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Patents > IPCs : IPC B64C39/00 or None & Number of claims: 4

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Tech fields:
Airplane (128) · frame (77) · propulsion (68) · Stability (68) · design (64) · LTA (56) · None (43) · propeller (39) · Construction (38) · control (36) · propellers (35) · wings (34) · navigation (28) · Aerodynamics (27) · whole (26) · rudder (21) · balloon (20) · subsystem (20) · lift (18)
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Supplementary to patent:
None (302) · Patent GB-1909-2111 (4) · Patent DE-1907-214228 (3) · Patent BE-1911-05-15 Georges de Bothezat (2) · Patent FR-1909-406375 (2) · Patent FR-1909-403418 (2) · Patent FR-1912-447782 (2) · Patent FR-1916-502839 (2) · Patent ES-1911-50083‎ (2) · Patent DE-1909-220044 (2) · Patent NO-1915-12-15 Carl Alfred Johansson (2) · Patent DE-1910-06-18 Carl Hanschke (2)
Related to aircraft:
Patent agent:
None (165) · Marks & Clerk (13) · Munn & Co. (11) · Armengaud jeune (9) · None (7) · Victor J. Evans (5) · Haseltine, Lake & Co. (5) · Abel & Imray (5) · E. Blum & Co. (5) · Boult, Wade & Tennant (4) · W. P. Thompson & Co.‎ (4) · Joshua R. H. Potts (3) · Brandon frères (3) · H. Kirchhofer (3)
National tech categories:
None (142) · HU V/h (54) · FR 6.4 (32) · AT 77d (15) · CH 129b (8) · USPC 244/80 (7) · USPC 244/22 (6) · USPC 244/6 (6) · USPC 244/70 (5) · USPC 244/45R (5) · USPC 244/20 (4) · USPC 244/93 (4) · DK 77 (4) · DE 77h.15 (4) · DE 77 (4)
IPCs: (Click arrow to add another value)
CPCs:
None (169) · CPC B64C2700/6295 (41) · CPC B64C39/00 (39) · CPC B64C39/005 (19) · CPC B64C17/00 (17) · CPC B64C39/08 (11) · CPC B64C23/005 (10) · CPC B64C33/02 (8) · CPC B64C11/006 (8) · CPC B64C3/385 (8) · CPC B64B1/40 (6) · CPC B64C11/343 (6) · CPC B64C13/00 (6) · CPC B64C39/008 (6) · CPC B64C11/48 (5) · CPC B64B1/00 (5) · CPC Y02E10/72 (4)
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