Drilldown: Patents

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Patents > Family year: 1909 & Number of claims: 2-4

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Tech fields:
airplane (139) · design (88) · stability (76) · frame (74) · LTA (59) · Construction (54) · None (53) · Propellers (52) · propulsion (52) · Control (46) · Subsystem (42) · wings (35) · navigation (34) · rudder (33) · lift (32) · propeller (29) · Whole (27) · Aerodynamics (26) · Airship (25) · Automatic stability (22)
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None (267) · Patent FR-1909-403985 (5) · Patent US-1909-970771 (4) · Patent GB-1909-2111 (4) · Patent FR-1909-408197 (4) · Patent FR-1909-410140 (3) · Patent DE-1909-226609 (3) · Patent FR-1909-402649 (3) · Patent FR-1909-403418 (3) · Patent FR-1909-408057‎ (3) · Patent FR-1909-411204 (3) · Patent AT-1909-49294 (3) · Patent DE-1909-02-25 Hugo Erdmann (3)
Related to aircraft:
Patent agent:
None (104) · Armengaud jeune (29) · Marks & Clerk (20) · Boult, Wade & Tennant (15) · None (8) · Charles Dony (7) · E. Blétry (7) · Herbert Haddan & Co. (7) · Lavoix et Mosès (7) · L. Chassevent (6) · Schwab (6) · Boramé et Julien (5) · Abel & Imray (5) · Haseltine, Lake & Co. (5) · Johnsons & Willcox (5) · G. F. Redfern & Co. (4) · Hippolyte Josse (4) · G. de Mestral et F. Harlé (4) · Cassell & Co. (4)
National tech categories:
None (152) · FR 6.4 (116) · HU V/h (27) · AT 77d (9) · USPC 244/65 (4) · USPC 244/17.15 (4) · FR 6.2 (4) · DE 77h.11 (3) · USPC 244/70 (3) · USPC 244/6 (3) · FR 5.3 (3) · DK 77 (3) · DE 77h.9 (3) · USPC 244/17.21 (3)
IPCs:
None (120) · IPC B64C39/00 (37) · IPC B64C17/00 (29) · IPC B64C1/00 (25) · IPC B64B1/00 (16) · IPC B64C3/38 (15) · IPC B64C35/00 (12) · IPC B64C13/00 (10) · IPC B64C23/00 (9) · IPC B64C11/00 (9) · IPC B64C3/00 (9) · IPC B64B1/58 (8) · IPC B64C27/04 (7) · IPC B64C25/00 (6) · IPC B64C31/06 (6) · IPC B64B1/62 (6) · IPC B63H1/12 (5) · IPC B64C33/00 (5)
CPCs:
None (62) · CPC B64C17/00 (31) · CPC B64C39/00 (27) · CPC B64C2700/6295 (24) · CPC B64C13/00 (17) · CPC B64C23/005 (16) · CPC B64B1/00 (16) · CPC B64C3/385 (13) · CPC B64C2700/6218 (11) · CPC B64C35/00 (11) · CPC B64B1/58 (9) · CPC B64C2700/6212 (8) · CPC B64C2700/6256 (8) · CPC B64C11/006 (8) · CPC B64C1/00 (8) · CPC B64C3/00 (8)
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Citations from after 1930:
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