Drilldown: Patents

Jump to navigation Jump to search
Patents > Citations from after 1930: 2-5 & Number of text pages: 1-2

Use the filters below to narrow your results.

Office:
Inventors:
Spencer Heath (3) · John J. Rectenwald (2) · Eleazer Kempshall (2)
Inventor country:
Applicant person:
Spencer Heath (3) · None (2) · John J. Rectenwald (2) · Eleazer Kempshall (2)
Applicant is inventor:
Tech fields:
None (21) · military (18) · projectile (15) · LTA (15) · propeller (13) · frame (11) · propulsion (10) · stability (9) · parachute (9) · kite (8) · airplane (7) · rudder (6) · balloon (6) · navigation (6) · windmill (5) · Safety (5) · marine (5)
Full specification filed date:
Application number:
None (75)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (18) · Munn & Co. (16) · None (10) · Victor J. Evans (6) · C. Bauman (2) · Herbert Haddan & Co. (2) · Eric W. Walford (2)
National tech categories:
None (49) · USPC 244/3.23 (14) · USPC 244/153R (6) · FR 6.4 (6) · USPC 244/97 (3) · USPC 416/117 (2) · USPC 244/32 (2) · USPC 244/35R (2) · USPC 244/234 (2) · USPC 244/22 (2) · USPC 244/60 (2) · USPC 244/66 (2) · USPC 24/713.8 (2) · USPC 416/113 (2) · USPC 244/3.3 (2) · USPC 74/471R (2) · USPC 102/371 (2)
IPCs:
None (77) · IPC B64B1/00 (10) · IPC B64C31/00 (7) · IPC B64C31/06 (7) · IPC F42B10/00 (6) · IPC B64C25/00 (3) · IPC B64C23/00 (3) · IPC B64C39/00 (3) · IPC B64C3/00 (3) · IPC B64C33/00 (2) · IPC B64C13/00 (2) · IPC B64C11/20 (2) · IPC B64B1/62 (2) · IPC B64B1/40 (2)
CPCs:
CPC F42B10/30 (10) · CPC B64C27/54 (9) · CPC Y02E10/74 (6) · CPC B64B1/40 (6) · CPC A63H27/08 (6) · CPC B64C11/48 (6) · CPC B64C23/005 (5) · CPC B64B1/00 (5) · CPC B64C13/00 (5) · CPC B64C2700/6295 (4) · CPC F03D3/00 (4) · CPC B64C11/006 (4)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

Showing below up to 147 results in range #1 to #147.

View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)

View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)