Drilldown: Patents

Jump to navigation Jump to search
Patents > Year granted: 1910 - 1919 & Citations from after 1930: 3-30 & Number of diagram pages: 1-3

Use the filters below to narrow your results.

Office:
Inventors:
James Robertson Porter (2) · Spencer Heath (2) · Louis Alard (2) · John J. Rectenwald (2) · Joseph Emery Bissell (2)
Inventor country:
Applicant person:
Spencer Heath (2) · James Robertson Porter (2) · Louis Alard (2) · John J. Rectenwald (2) · Joseph Emery Bissell (2)
Applicant type:
Applicant is inventor:
Tech fields:
None (35) · propeller (14) · stability (10) · frame (8) · airplane (8) · airfoil (6) · safety (5) · military (5) · LTA (5) · helicopter (4) · propulsion (4) · aerial propeller (4)
Full specification filed date:
Application number:
None (29)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (7) · None (6) · Munn & Co. (6) · H. C. Everett Co. (3) · Victor J. Evans (3) · Randolph, Jr. (2) · Christy and Christy (2) · Eric W. Walford (2) · Boult, Wade & Tennant (2) · W. J. FitzGerald & Co. (2)
National tech categories:
None (39) · FR 6.4 (5) · USPC 244/17.11 (3) · USPC 244/234 (3) · USPC 244/119 (3) · USPC 244/46 (3) · USPC 244/45R (3)
IPCs:
None (78) · IPC B64C25/00 (3) · IPC B64C13/00 (3) · IPC B64C3/00 (3) · IPC B64B1/00 (2) · IPC B64C3/56 (2) · IPC B64C39/00 (2) · IPC B64C3/54 (2)
CPCs:
CPC B64C27/82 (5) · CPC Y02E10/74 (4) · CPC B64C2700/6295 (4) · CPC F03D3/00 (3) · CPC B64C2001/0081 (3) · CPC B64C3/14 (3) · CPC B64C3/54 (3) · CPC B64C11/48 (3) · CPC B64C11/343 (3) · CPC Y10T74/20012 (3) · CPC B64C39/08 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

Showing below up to 119 results in range #1 to #119.

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

P


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