Drilldown: Patents

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Patents > Year filed: 1918 & National tech categories: None & Citations from after 1930: None

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Year filed:
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Inventor location:
None (349) · Pennsylvania (5) · Illinois (2) · New York state (2) · Michigan (2) · Allegheny county, PA (2) · Turin (2) · Wilkinsburg, PA (2)
Applicant is inventor:
Tech fields:
None (218) · airplane (57) · frame (33) · construction (32) · design (22) · propellers (19) · aerodynamics (15) · control (15) · stability (12) · wings (11) · LTA (11) · structure (10) · propeller (10) · propulsion (10) · spars (9) · fuselage (9) · subsystem (9) · metal (9) · biplane (8) · Airship (8)
Application number:
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Related to aircraft:
Patent agent:
None (257) · None (11) · A. M. & William Clark (9) · Marks & Clerk (7) · Boult, Wade & Tennant (5) · John P. Tarbox (5) · Phillipss (3) · Herbert H. Thompson (3) · G. F. Redfern & Co. (3)
National tech categories: (Click arrow to add another value)
IPCs:
None (245) · IPC B64C3/18 (15) · IPC B64C39/00 (11) · IPC B64C1/06 (10) · IPC B64C3/00 (8) · IPC B64B1/00 (6) · IPC B64C11/20 (5) · IPC B64C1/00 (5) · IPC B64C11/00 (5) · IPC B64C35/00 (4) · IPC B64C3/26 (3) · IPC B64C17/00 (3) · IPC B64C13/00 (3) · IPC B64C11/36 (3) · IPC B64C25/00 (3)
CPCs:
CPC B64C2700/6295 (23) · CPC B64C3/00 (19) · CPC B64C39/00 (19) · CPC B64C3/18 (18) · CPC B64C13/00 (17) · CPC B64C1/065 (15) · CPC B64C17/00 (14) · CPC B64C2700/6256 (12) · CPC B64C3/185 (12) · CPC B64B1/00 (12) · CPC B64B1/40 (12) · CPC B64C2001/0081 (11) · CPC B64C35/00 (9) · CPC B64C2700/6235 (9) · None (9) · CPC B64C2700/6233 (8) · CPC B64C11/20 (8) · CPC B64C2001/0063 (8) · CPC B64C23/005 (8) · CPC B64C2700/6212 (7)
First filing:
Citations from after 1930:
Number of diagram pages:

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