Drilldown: Patents

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Patents > Tech fields : electricity or stability & Number of claims: 8-70

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Office:
Inventors:
Alfred John Macy (16) · Sam Leonard Walkden (6) · John P. Tarbox (5) · Louis Brennan (5) · Paul Robin (4) · József Fenyvesi (3) · George Raymond Lawrence (3) · Edmond Lévi (3) · George Brougham Hubert Austin (3) · Ralph Hazlett Upson (3) · Elmer Ambrose Sperry (3) · Alajos Biró (3)
Inventor country:
Applicant person:
None (37) · Alfred John Macy (16) · Sam Leonard Walkden (6) · Louis Brennan (5) · Paul Robin (4) · Alajos Biró (3) · Edmond Lévi (3) · József Fenyvesi (3) · Elmer Ambrose Sperry (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (52) · 1913781506 (2) · 25941D (2)
Granted:
Supplementary to patent:
None (165) · Patent GB-1909-8531 (4) · Patent FR-1911-443878 (3) · Patent US-1913-04-21 George Raymond Lawrence (3) · Patent GB-1903-27212 (3) · Patent GB-1910-6051 (3) · Patent BE-1910-230887 (2) · Patent FR-1911-426612 (2) · Patent HU-1909-49038 (2) · Patent GB-1913-2294 (2) · Patent AU-1911-510 (2) · Patent US-1914-1368226 (2)
Related to aircraft:
Patent agent:
None (75) · Munn & Co. (11) · Haseltine, Lake & Co. (8) · Charles W. Hills (6) · None (5) · Marks & Clerk (5) · Armengaud jeune (5) · Victor J. Evans (3) · Abel & Imray‎ (3)
National tech categories:
None (74) · FR 6.4 (28) · USPC 244/80 (16) · USPC 244/90R (10) · USPC 244/177 (9) · USPC 244/45R (6) · HU V/h (6) · USPC 244/91 (4) · AU 90.3 (3) · USPC 244/76R (3) · USPC 244/87 (3) · USPC 244/139 (3) · USPC 244/78.1 (3) · USPC 244/93 (3) · CA 341/80 (3) · USPC 244/46 (3)
CPCs:
CPC B64C17/00 (56) · None (38) · CPC B64C2700/6218 (19) · CPC B64C2700/6295 (15) · CPC B64C13/00 (14) · CPC B64C17/06 (13) · CPC B64C2700/6216 (10) · CPC B64C39/00 (7) · CPC B64B1/00 (7) · CPC B64C39/08 (6) · CPC B64C13/24 (6) · CPC B64C39/005 (5) · CPC B64C23/005 (5) · CPC B64C2700/6212 (5) · CPC B64C33/02 (4) · CPC B64B1/40 (4)
First filing:
Citations from after 1930:
Number of diagram pages:

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