Drilldown: Patents

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Patents > Tech fields : Airship or Stability & Number of claims: 3-4

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Supplementary to patent:
None (225) · Patent BE-1911-05-15 Georges de Bothezat (5) · Patent GB-1909-2111 (4) · Patent DE-1913-301564 (4) · Patent DE-1908-232250 (3)
Related to aircraft:
Patent agent:
None (120) · Armengaud jeune (16) · Marks & Clerk (13) · None (12) · Haseltine, Lake & Co. (11) · Munn & Co. (8) · E. Blétry (8) · Wheatley & Mackenzie (5) · Lavoix et Mosès (4) · E. Blum & Co. (4) · J. Germain (4) · Victor J. Evans (4) · Dupont et Elluin (4)
National tech categories:
None (115) · FR 6.4 (98) · HU V/h (39) · AT 77d (11) · USPC 244/93 (6) · USPC 244/6 (5) · DK 77 (5) · DE 77h.5 (4) · USPC 244/80 (4) · FR 6.3 (4) · USPC 244/90R (4) · DE 77 (3) · USPC 244/177 (3) · CH 129b (3) · USPC 244/46 (3)
IPCs:
None (159) · IPC B64C17/00 (63) · IPC B64C1/00 (60) · IPC B64B1/00 (26) · IPC B64C39/00 (20) · IPC B64C17/06 (16) · IPC B64C13/00 (9) · IPC B64B1/40 (8) · IPC B64C3/38 (5) · IPC B64C33/00 (4) · IPC B64B1/58 (3) · IPC B64C9/00 (3) · IPC B64C3/52 (3)
CPCs:
None (92) · CPC B64C17/00 (79) · CPC B64C2700/6218 (29) · CPC B64B1/00 (23) · CPC B64C17/06 (19) · CPC B64C39/00 (17) · CPC B64C2700/6295 (16) · CPC B64C2700/6216 (15) · CPC B64C2700/6212 (13) · CPC B64B1/40 (13) · CPC B64C13/00 (11) · CPC B64C3/385 (10) · CPC B64C23/005 (9) · CPC B64C1/00 (8) · CPC B64C2700/6214 (8) · CPC B64C39/005 (6) · CPC B64C2700/6256 (6)
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