Drilldown: Patents

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Patents > Granted: Yes & Number of text pages: 5-20 & Number of claims: 7-8

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Office:
Inventors:
Edmund Sparmann (3) · Adolphe-François-Joseph Doutre (3)
Inventor country:
Inventor location:
None (136) · London (3) · Missouri (2) · New York state (2) · St. Louis (2) · England (2)
Applicant person:
None (9) · Adolphe-François-Joseph Doutre (3) · Edmund Sparmann (3)
Applicant is inventor:
Tech fields:
airplane (57) · stability (37) · design (25) · frame (24) · propulsion (24) · propellers (20) · None (19) · control (15) · wings (12) · automatic stability (12) · whole (11) · LTA (11) · marine (11) · safety (10) · helicopter (9) · propeller (9) · Construction (9) · aerodynamics (8) · HTA (8) · landing (8)
Full specification filed date:
Application number:
None (53)
Granted: (Click arrow to add another value)
Supplementary to patent:
None (101) · Patent GB-1908-4519 (2) · Patent US-1913-1087946 (2) · Patent US-1904-876125 (2) · Patent US-1918-1589780 (2)
Related to aircraft:
Patent agent:
None (40) · Marks & Clerk (7) · Haseltine, Lake & Co. (5) · Philip M. Justice (3) · Boult, Wade & Tennant (3) · E. Imer-Schneider (2) · L. Chassevent (2) · Ernest de Pass (2) · Munn & Co. (2) · John P. Tarbox (2) · Philip Middleton Justice (2) · Phillipss (2) · Jensen & Son (2) · Brewer & Son (2) · Gerry S. Webster (2) · Tongue & Birkbeck (2) · Edmund Hunt & Co. (2)
National tech categories:
None (82) · FR 6.4 (28) · HU V/h (5) · CH 129b (4) · USPC 244/45R (2) · AT 77d (2) · CA 244/12 (2) · USPC 244/48 (2)
IPCs:
None (75) · IPC B64C17/00 (20) · IPC B64C1/00 (14) · IPC B64C35/00 (9) · IPC B64C33/02 (5) · IPC B64C11/00 (5) · IPC B64C3/38 (4) · IPC B64C13/00 (3) · IPC B64B1/00 (3) · IPC B64C39/00 (3) · IPC B64D27/00 (2) · IPC B64C33/00 (2) · IPC B64C17/06 (2) · IPC B64C3/00 (2)
CPCs:
None (44) · CPC B64C17/00 (23) · CPC B64C2700/6218 (11) · CPC B64C35/00 (8) · CPC B64C3/385 (7) · CPC B64C13/00 (6) · CPC B64C23/005 (6) · CPC B64C2700/6212 (5) · CPC B64C2700/6295 (5) · CPC B64B1/00 (5) · CPC B64C33/02 (4) · CPC B64C33/00 (3) · CPC B64C39/00 (3) · CPC B64C39/08 (3) · CPC B64C17/06 (3) · CPC B64F2700/6261 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of claims:
Number of diagram pages:

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