Drilldown: Patents

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Patents > Tech fields : hybrid or lift or propellers & Number of figures: 2-4

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Supplementary to patent:
None (347) · Patent FR-1908-392672 (6) · Patent FR-1910-423792 (5) · Patent FR-1909-410140 (5) · Patent DE-1911-251309 (4) · Patent BE-1911-04-14 Lucien-Constant-Joseph Harel (4) · Patent FR-1911-430455 (4) · Patent US-1909-970771 (4) · Patent FR-1915-478440 (3) · Patent US-1908-927605 (3) · Patent US-1908-1077750 (3) · Patent AT-1909-40038 (3) · Patent FR-1908-407090 (3)
Related to aircraft:
Patent agent:
None (214) · Armengaud jeune (41) · None (23) · J. Bonnet-Thirion (14) · E. Blétry (13) · G. de Mestral et F. Harlé (11) · Boult, Wade & Tennant (11) · Weismann et Marx (8) · Schwab (7) · Marks & Clerk (7) · Herbert Haddan & Co. (7) · Paul Caquet (6) · L. Chassevent (6) · Haseltine, Lake & Co. (6) · Charles Dony (6) · Y. Rabilloud et fils (6) · C. Blétry‎ (5) · Hippolyte Josse (5)
National tech categories:
FR 6.4 (222) · None (138) · HU V/h (67) · FR 6.2 (20) · AT 77d (16) · FR 6.3 (10) · DE 77h.6 (8) · DE 77h.5 (8) · BE K (4) · USPC 244/25 (3) · USPC 244/73R (3) · CH 129b (3) · USPC 244/64 (3)
IPCs:
None (204) · IPC B64C11/00 (38) · IPC B64C39/00 (37) · IPC B64C23/00 (27) · IPC B64B1/00 (20) · IPC B64C17/00 (18) · IPC B64C11/20 (16) · IPC B64C11/04 (15) · IPC B64C1/00 (15) · IPC B64C27/04 (12) · IPC B64C35/00 (12) · IPC B64C11/16 (10) · IPC B64C11/36 (9) · IPC B64C33/02 (9) · IPC B64C3/38 (8) · IPC B64C3/54 (7) · IPC B63H1/12 (7)
CPCs:
None (149) · CPC B64C23/005 (31) · CPC B64C39/00 (27) · CPC B64C11/006 (26) · CPC B64B1/00 (22) · CPC B64C2700/6295 (20) · CPC B64C17/00 (19) · CPC B64C2700/6274 (17) · CPC B64C11/04 (15) · CPC B64C11/00 (15) · CPC B64C11/16 (13) · CPC B64C13/00 (11) · CPC B64C33/02 (11) · CPC B64C11/36 (10) · CPC B64C2700/6281 (9) · CPC B64C11/20 (9) · CPC B64C27/04 (9) · CPC B64C3/385 (8)
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