Drilldown: Patents

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Patents > Tech fields : Airship or rudder & Patent agent: None & First filing : No or Yes

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None (163)
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Supplementary to patent:
None (229) · Patent US-1903-821393 (4) · Patent DE-1907-202942 (3) · Patent GB-1911-2636 (3) · Patent US-1906-850616 (2) · Patent US-1899-666266 (2) · Patent GB-1909-2111 (2) · Patent FR-1913-452942 (2) · Patent FR-1908-401308 (2) · Patent DE-1915-04-13 Luft Fahrzeug G.m.b.H. (2) · Patent DE-1912-279343 (2) · Patent DE-1911-258741 (2) · Patent DE-1909-12-22 System "Stephan" (2) · Patent DE-1909-02-25 Hugo Erdmann (2) · Patent FR-1885-168266 (2) · Patent US-1913-1087946 (2)
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National tech categories:
None (59) · HU V/h (58) · FR 6.4 (20) · DE 77 (17) · AT 77d (17) · FR 6.3 (12) · DE 77h.5 (8) · BE K (6) · RU Group V (5) · DE 77h.4 (5) · DE 77h.2 (5) · DE 77h.15 (4) · USPC 244/87 (4) · USPC 244/96 (4) · USPC 244/52 (4) · USPC 244/51 (4) · USPC 244/90R (4) · USPC 244/22 (4)
IPCs:
None (223) · IPC B64B1/00 (22) · IPC B64C39/00 (10) · IPC B64C13/00 (9) · IPC B64B1/58 (6) · IPC B64C17/00 (4) · IPC B64C11/00 (4) · IPC B64C1/00 (4) · IPC B64C33/00 (3) · IPC B64C33/02 (3) · IPC B64B1/40 (3) · IPC B64B1/22 (3) · IPC B64C3/14 (3) · IPC B64C9/02 (3) · IPC B64C31/04 (2) · IPC B64B1/02 (2)
CPCs:
None (159) · CPC B64B1/00 (30) · CPC B64C13/00 (20) · CPC B64B1/58 (8) · CPC B64B1/40 (8) · CPC B64C2700/6295 (7) · CPC B64C17/00 (7) · CPC B64C33/02 (7) · CPC B64C3/14 (5) · CPC B64C39/005 (5) · CPC B64C23/005 (4) · CPC B64C9/38 (4) · CPC B64C3/385 (4) · CPC B64C2700/6256 (4)
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