Drilldown: Patents

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Patents > Applicant firm: None & Number of text pages: 7-50000000

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Tech fields:
airplane (150) · stability (106) · None (86) · frame (75) · propulsion (65) · design (61) · LTA (59) · navigation (53) · wings (43) · Control (36) · propellers (35) · rudder (33) · automatic stability (32) · propeller (31) · construction (30) · whole (27) · marine (25) · aerodynamics (24) · safety (19) · Subsystem (19)
Granted:
Supplementary to patent:
None (329) · 1 (5) · Patent US-1913-04-21 George Raymond Lawrence (4) · Patent GB-1903-27212 (4) · Patent FR-1908-396249 (4) · Patent GB-1909-8531 (4) · Patent US-1908-1072664 (3) · Patent US-1909-970771 (3)
Patent agent:
None (174) · Marks & Clerk (16) · None (16) · Munn & Co. (12) · Haseltine, Lake & Co. (11) · 1 (8) · Armengaud jeune (8) · Brandon frères (8) · Matray frères et Cie (6) · William L. Hall (5) · A. M. & William Clark (5) · Henry Hughes (4) · Schwab (4) · Brewer & Son (4) · Boult, Wade & Tennant (4)
National tech categories:
None (197) · FR 6.4 (73) · HU V/h (14) · USPC 244/80 (10) · FR 6.3 (8) · GB 4 propel & steer (7) · CA 244/24 (6) · USPC 244/87 (5) · USPC 244/90R (5) · CH 129b (5) · USPC 244/177 (5) · USPC 244/64 (4) · GB 4 framework (4) · USPC 244/119 (4) · GB 4 aëroplanes (4) · GB 4 without buoyant (4)
IPCs:
None (291) · IPC B64C17/00 (41) · IPC B64C1/00 (35) · IPC B64C39/00 (19) · IPC B64C3/38 (10) · IPC B64B1/00 (9) · IPC B64C17/06 (8) · IPC B64C13/00 (6) · IPC B64C23/00 (6) · IPC B64C11/00 (5) · IPC B64C3/00 (5) · IPC B64C33/00 (5) · IPC B64C33/02 (5) · IPC B64C3/54 (4) · IPC B64C13/24 (4) · IPC B64C27/04 (3) · IPC B64C27/10 (3) · IPC B64C19/00 (3) · IPC B64B1/62 (3) · IPC B64B1/58 (3)
CPCs:
None (157) · CPC B64C17/00 (56) · CPC B64C2700/6295 (25) · CPC B64C2700/6218 (22) · 1 (19) · CPC B64C13/00 (16) · CPC B64C39/00 (15) · CPC B64C2700/6212 (15) · CPC B64B1/00 (15) · CPC B64C3/385 (13) · CPC B64C13/24 (10) · CPC B64C2700/6256 (9) · CPC B64C23/005 (9) · CPC B64C17/06 (9) · CPC B64C33/02 (8) · CPC B64C39/005 (8) · CPC B64C33/00 (7) · CPC B64C2700/6216 (6) · CPC B64C2700/6274 (5)
First filing:
Citations from after 1930:

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