Drilldown: Patents

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

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Applicant firm: (Click arrow to add another value)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
Granted:
Supplementary to patent:
None (329) · Patent US-1909-970771 (5) · Patent GB-1908-4519 (5) · Patent FR-1841-9265 (4) · Patent FR-1910-423792 (3) · Patent US-1913-1087946 (3) · Patent FR-1908-404631 (3)
Related to aircraft:
Patent agent: (Click arrow to add another value)
National tech categories:
HU V/h (126) · None (117) · FR 6.4 (46) · AT 77d (34) · FR 6.3 (23) · BE K (22) · DE 77 (16) · FR 6.2 (15) · DE 77h.6 (8) · DK 77 (6) · NL 62 (4) · FR 5 (4) · FR 6 (4) · DE 77h (3) · DE 77h.2 (3) · DE 77h.4 (3) · IT 8 (3)
IPCs:
None (381) · IPC B64B1/00 (16) · IPC B64C39/00 (13) · IPC B64C11/00 (12) · IPC B64C11/16 (5) · IPC B64C11/04 (5) · IPC B64B1/58 (5) · IPC B63H1/12 (4) · IPC B64C33/02 (4) · IPC B64C1/00 (4) · IPC B64C27/04 (3) · IPC B64B1/40 (3) · IPC B64C11/20 (3) · IPC B64C23/00 (3) · IPC B64C17/00 (3)
CPCs:
None (318) · CPC B64B1/00 (23) · CPC B64C13/00 (8) · CPC B64C39/00 (8) · CPC B64C11/006 (8) · CPC B64C11/16 (7) · CPC B64B1/58 (7) · CPC B64C23/005 (7) · CPC B64C33/02 (6) · CPC B64C2700/6295 (5) · CPC B63H1/12 (5) · CPC B64C11/04 (5) · CPC B63H1/26 (4) · CPC B64C17/00 (4) · CPC B64C39/005 (4) · CPC B64C11/001 (4) · CPC B64C11/00 (4) · CPC B64C11/343 (4) · CPC B64C11/48 (4) · CPC B64B1/40 (4)
First filing:
Citations from after 1930:
Number of diagram pages:

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