Drilldown: Patents

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Patents > Applicant firm: None & Tech fields : Safety or balloon

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None (707) · Patent US-1910-1011683 (6) · Patent FR-1912-450892 (5) · Patent FR-1912-449070 (5) · Patent FR-1891-215265 (4) · Patent US-1913-04-21 George Raymond Lawrence (4) · Patent DE-1895-98580 (4) · Patent US-1906-850616 (4) · Patent GB-1902-24336 (4) · Patent DE-1909-Wilcke-Graff (4) · Patent CH-1899-18666 (4) · Patent FR-1902-321808 (4)
Related to aircraft:
Patent agent:
None (543) · Armengaud jeune (18) · Marks & Clerk (11) · Munn & Co. (11) · Herbert Haddan & Co. (10) · Victor J. Evans (9) · None (9) · H. Bœttcher fils (9) · Chassevent (8) · G. de Mestral et F. Harlé (8) · Haseltine, Lake & Co. (8) · Wheatley & Mackenzie (7) · L. Chassevent (7) · H. C. Everett Co. (6) · Brandon frères (6) · Hippolyte Josse (5) · J. Bonnet-Thirion (5)
National tech categories:
None (257) · FR 6.4 (131) · FR 6.3 (77) · FR 5 (39) · DE 77 (32) · USPC 244/30 (19) · AT 77d (18) · IT 8 (17) · GB 4 with buoyant (16) · GB 4 aërostats (15) · DE 77h (15) · BE K (11) · USPC 244/97 (11) · DE 77h.4 (11) · USPC 244/139 (10) · HU V/h (10)
IPCs:
None (612) · IPC B64B1/00 (103) · IPC B64B1/58 (25) · IPC B64C39/00 (19) · IPC B64B1/40 (19) · IPC B64D17/00 (16) · IPC B64B1/62 (12) · IPC B64C17/00 (10) · IPC B64C23/00 (7) · IPC B64C1/00 (6) · IPC B64B1/60 (5) · IPC A41D31/00 (5) · IPC B64B1/12 (5) · IPC B64D17/54 (5) · IPC B64B (4) · IPC B64B1/66 (4) · IPC B64C33/02 (4)
CPCs:
None (491) · CPC B64B1/00 (117) · CPC B64B1/40 (48) · CPC B64B1/58 (39) · CPC B64B1/62 (20) · CPC B64D17/00 (16) · CPC B64C17/00 (15) · CPC B64C23/005 (13) · CPC B64C39/00 (9) · CPC B64C39/008 (7) · CPC B64C2700/6295 (7) · CPC B64C13/00 (7) · CPC B64C39/08 (6) · CPC B64C27/006 (6) · CPC B64C2700/6273 (6) · CPC B64C33/02 (6)
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Citations from after 1930:
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