Drilldown: Patents

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Patents > Applicant firm: None & Tech fields : Airship or construction & Patent agent: None

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Application number:
None (174)
Granted:
Supplementary to patent:
None (272) · Patent US-1909-970771 (5) · Patent GB-1908-4519 (5)
Related to aircraft:
Patent agent: (Click arrow to add another value)
National tech categories:
HU V/h (103) · None (83) · FR 6.4 (50) · AT 77d (36) · FR 6.3 (26) · DE 77 (15) · DK 77 (7) · DE 77h.5 (6) · BE K (5) · DE 77h (5) · FR 6.2 (4) · FR 5 (4) · DE 77h.2 (4) · USPC 244/96 (3) · DE 77h.4 (3) · IT 8 (3)
IPCs:
None (290) · IPC B64C39/00 (22) · IPC B64B1/00 (16) · IPC B64C17/00 (9) · IPC B64C1/00 (9) · IPC B64B1/58 (9) · IPC B64C3/00 (6) · IPC B64C33/02 (5) · IPC B64C23/00 (5) · IPC B64C11/00 (4) · IPC B64C1/06 (3) · IPC B64C3/14 (3) · IPC B64C3/18 (3) · IPC B64B1/40 (3) · IPC B64C33/00 (3)
CPCs:
None (244) · CPC B64B1/00 (22) · CPC B64C39/00 (14) · CPC B64C2700/6295 (14) · CPC B64C17/00 (12) · CPC B64B1/58 (11) · CPC B64C39/005 (7) · CPC B64C33/02 (7) · CPC B64C3/00 (7) · CPC B64C23/005 (7) · CPC B64B1/40 (6) · CPC B64C3/14 (5) · CPC B64C2700/6274 (4) · CPC B64C2700/6218 (4) · CPC B64B1/62 (3) · CPC B64C33/00 (3) · CPC B64C2700/6235 (3) · CPC B64C39/08 (3) · CPC B64C13/00 (3)
First filing:
Citations from after 1930:
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