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Patents > Inventor country: US & Number of text pages: 1-2 & Number of diagram pages: 2

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Office:
Inventors:
Spencer Heath (3) · Henry W. Schmidt (2) · Louis Gathmann (2) · Albert Wolff, Jr. (2) · William S. Hull (2) · Joel Trout Rice (2) · James Vernon Martin (2) · Martin Braun (2) · Charles Rudolph Wittemann (2) · David Henderson Blake (2) · Armin Helfer (2)
Inventor country: (Click arrow to add another value)
Applicant person:
None (18) · Spencer Heath (3) · Armin Helfer (2) · Martin Braun (2) · Louis Gathmann (2) · David Henderson Blake (2) · Henry W. Schmidt (2) · Charles Rudolph Wittemann (2) · Albert Wolff, Jr. (2) · William S. Hull (2)
Applicant is inventor:
Tech fields:
LTA (38) · airplane (37) · propeller (36) · propulsion (34) · None (33) · frame (33) · navigation (30) · stability (25) · rudder (17) · safety (16) · flapping (14) · car (14) · hybrid (11) · propellers (11) · parachute (10) · marine (10) · airfoil (10)
Full specification filed date:
Application number:
None (84)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (49) · Munn & Co. (21) · Victor J. Evans (14) · None (6) · Joshua R. H. Potts (5) · A. M. Wilson (3) · C. A. Snow & Co. (3) · E. G. Vrooman (2) · R. S. & A. B. Lacey (2) · Pierre Barnes (2) · E. B. Stocking (2) · H. C. Everett Co. (2) · Thomas O. Hill (2) · Dyer, Dyer, and Taylor (2)
National tech categories:
None (76) · USPC 244/45R (8) · USPC 244/6 (7) · USPC 244/22 (6) · USPC 244/87 (5) · USPC 244/72 (5) · USPC 244/64 (5) · USPC 244/30 (5) · USPC 244/79 (4) · USPC 244/73R (4) · USPC 244/66 (4) · USPC 244/88 (4) · FR 6.4 (4)
IPCs:
None (172) · IPC B64B1/00 (13) · IPC B64C39/00 (9) · IPC B64C33/00 (4) · IPC B64C3/00 (4) · IPC B64C17/00 (3) · IPC B64C13/00 (3) · IPC B64C27/00 (3) · IPC B64C3/38 (2) · IPC B64C23/00 (2) · IPC B64C1/00 (2) · IPC B64C5/04 (2) · IPC F42B10/00 (2) · IPC B64C9/00 (2) · IPC B64D17/00 (2) · IPC B64C25/00 (2)
CPCs:
CPC B64C2700/6295 (16) · CPC B64B1/00 (14) · CPC B64C11/006 (13) · CPC B64C11/48 (12) · CPC B64C13/00 (12) · CPC B64C23/005 (11) · CPC B64C27/54 (9) · CPC Y02E10/72 (8) · CPC B64C39/08 (8) · CPC B64C39/005 (8) · CPC B64C33/02 (8) · CPC B64C3/385 (7) · CPC B64C17/00 (6) · CPC B64C11/343 (6) · CPC Y02E10/74 (6) · CPC B64C27/82 (6) · CPC B63H1/04 (5) · CPC F03D3/00 (5) · CPC B63H5/10 (5) · None (5)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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