Drilldown: Patents

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Patents > Tech fields : Airship or aerodynamics or propellers & Number of claims: 2-3

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Supplementary to patent:
None (257) · Patent DE-1912-279343 (4) · Patent DE-1911-251309 (4) · Patent GB-1911-12232 (4) · Patent CH-1912-62201 (4) · Patent DE-1913-301564 (4) · Patent FR-1910-423792 (3) · Patent FR-1911-430455 (3)
Related to aircraft:
Patent agent:
None (185) · Armengaud jeune (31) · Boult, Wade & Tennant (10) · L. Chassevent (9) · Marks & Clerk (9) · Haseltine, Lake & Co. (7) · None (7) · E. Blétry (6) · Herbert Haddan & Co. (5) · Schwab (5) · J. Germain (5) · Lavoix et Mosès (5) · Hy. Fairbrother (4) · E. Blum & Co. (4) · Charles Dony (4) · Hippolyte Josse (4) · Brandon frères (4)
National tech categories:
FR 6.4 (127) · None (113) · HU V/h (75) · AT 77d (27) · FR 6.2 (12) · DK 77 (5) · DE 77h.6 (5) · DE 77h.4 (4) · DE 77h.5 (3) · FR 6.3 (3) · USPC 244/127 (3)
IPCs:
None (191) · IPC B64C11/00 (26) · IPC B64C39/00 (20) · IPC B64C1/00 (19) · IPC B64B1/00 (16) · IPC B64C17/00 (11) · IPC B64C11/20 (9) · IPC B64C23/00 (8) · IPC B63H1/12 (8) · IPC B64C11/04 (8) · IPC B64B1/58 (8) · IPC B64C35/00 (7) · IPC B64B1/40 (6) · IPC B64C27/04 (6) · IPC B64C11/36 (5) · IPC B64D35/04 (5)
CPCs:
None (148) · CPC B64B1/00 (21) · CPC B64C11/006 (18) · CPC B64C39/00 (16) · CPC B64C17/00 (12) · CPC B64C23/005 (10) · CPC B64B1/40 (10) · CPC B64B1/58 (10) · CPC B64C2700/6295 (10) · CPC B64C11/00 (9) · CPC B64C2700/6274 (8) · CPC B64C2700/6218 (8) · CPC B64C11/04 (8) · CPC B64C11/16 (7) · CPC B64C11/20 (7) · CPC B64C1/00 (6) · CPC B64C35/00 (6) · CPC B63H1/26 (6)
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