Drilldown: Patents

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Patents > Tech fields : airfoil or propellers & Number of text pages: 2-3

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Supplementary to patent:
None (359) · Patent DE-1911-251309 (4) · Patent FR-1910-423792 (4) · Patent DE-1909-220044 (4) · Patent DE-1910-06-18 Carl Hanschke (4) · Patent DE-1907-240268 (3) · Patent AT-1909-40038 (3) · Patent FR-1911-430455 (3) · Patent US-1909-970771 (3) · Patent DE-1913-287314 (3) · Patent AT-1912-64392 (3) · Patent AT-1912-57088 (3) · Patent FR-1916-502839 (3)
Related to aircraft:
Patent agent:
None (212) · Marks & Clerk (11) · Armengaud jeune (11) · Boult, Wade & Tennant (10) · Schwab (8) · J. Germain (6) · J. Bonnet-Thirion (6) · Boramé et Julien (6) · Haseltine, Lake & Co. (6) · Munn & Co. (6) · Charles Dony (6) · E. Blétry (6) · Weismann et Marx (5) · Dom. Casalonga (5) · Brandon frères (5) · Lavoix et Mosès (5) · None (5)
National tech categories:
None (149) · FR 6.4 (113) · HU V/h (70) · AT 77d (32) · FR 6.2 (21) · DE 77h.5 (9) · FR 6.3 (8) · DE 77h.6 (8) · USPC 244/35R (7) · USPC 244/45R (7) · CH 129b (7) · USPC 244/72 (6) · DE 77h.7 (6) · USPC 244/87 (5) · USPC 244/22 (5) · USPC 244/90R (5) · USPC 244/64 (5) · DK 77 (4) · USPC 244/48 (4)
IPCs:
None (267) · IPC B64C11/00 (30) · IPC B64C39/00 (27) · IPC B64C11/20 (16) · IPC B64C23/00 (14) · IPC B64C11/16 (13) · IPC B64C33/02 (10) · IPC B64C11/04 (9) · IPC B64B1/00 (8) · IPC B64C27/04 (8) · IPC B63H1/12 (7) · IPC B64C17/00 (7) · IPC B64C1/00 (6) · IPC B64C3/00 (6) · IPC B64C3/52 (6) · IPC B64C11/36 (6) · IPC B64C3/14 (5) · IPC B64C11/18 (5) · IPC B64D35/08 (5) · IPC B64C11/24 (5)
CPCs:
None (157) · CPC B64C39/00 (20) · CPC B64C11/006 (20) · CPC B64C2700/6295 (19) · CPC B64C23/005 (19) · CPC B64C33/02 (17) · CPC B64C11/16 (15) · CPC B64C3/14 (14) · CPC B64C2700/6274 (13) · CPC B64B1/00 (13) · CPC B64C11/00 (13) · CPC B64C11/20 (12) · CPC B64C39/08 (10) · CPC B64C11/36 (9) · CPC B64C13/00 (9) · CPC B64C11/04 (9) · CPC B64C3/385 (8) · CPC B64C3/00 (8) · CPC B64C11/18 (8)
First filing:
Citations from after 1930:
Number of text pages:
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