Drilldown: Patents

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Patents > Tech fields : Airship or Construction & National tech categories : CA 244/31 or FR 6.3 or FR 6.4 or None & First filing: No

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None (150) · Patent FR-1907-373818 (6) · Patent US-1909-970771 (4) · Patent GB-1908-4519 (4) · Patent FR-1908-405961 (4)
Related to aircraft:
Patent agent:
None (86) · Armengaud jeune (50) · Dupont et Elluin (10) · Boult, Wade & Tennant (9) · Weismann et Marx (7) · Hippolyte Josse (7) · Herbert Haddan & Co. (6) · Ch. Mardelet (6) · L. Chassevent (5) · Schwab (5) · Dom. Casalonga (5) · E. Blétry (5) · Gaston Rose (5) · G. de Mestral et F. Harlé (5) · None (5) · Charles Assi (5)
National tech categories: (Click arrow to add another value)
IPCs:
None (81) · IPC B64C39/00 (46) · IPC B64B1/00 (29) · IPC B64C1/00 (24) · IPC B64C17/00 (20) · IPC B64C3/00 (18) · IPC B64C3/18 (15) · IPC B64C25/00 (11) · IPC B64C23/00 (10) · IPC B64B1/58 (10) · IPC B64C11/00 (7) · IPC B64C35/00 (6) · IPC B64C3/52 (6) · IPC B64C27/04 (5) · IPC B64B1/40 (5) · IPC B64C3/54 (5)
CPCs:
None (69) · CPC B64C39/00 (37) · CPC B64C2700/6295 (32) · CPC B64B1/00 (32) · CPC B64C17/00 (21) · CPC B64C3/00 (18) · CPC B64C2700/6218 (11) · CPC B64C3/18 (10) · CPC B64C23/005 (10) · CPC B64B1/58 (10) · CPC B64C2700/6274 (9) · CPC B64C25/06 (9) · CPC B64F2700/6226 (7) · CPC B64C2700/6235 (7) · CPC B64C25/52 (7) · CPC B64C2700/6233 (7)
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