Drilldown: Patents

Jump to navigation Jump to search
Patents > Inventor country: None & Applicant person : DOUGLAS Clark WILLIAM or None

Use the filters below to narrow your results.

Inventor country: (Click arrow to add another value)
Applicant person: (Click arrow to add another value)
Applicant is inventor:
Tech fields:
None (1886) · LTA (110) · propulsion (93) · balloon (79) · navigation (76) · frame (25) · Airplane (24) · propeller (23) · marine (19) · stability (17) · whole (16) · rudder (14) · car (13) · safety (13) · subsystem (12) · flapping (10) · balloons (10)
Granted:
Supplementary to patent:
None (2248) ·   (7)
Related to aircraft:
Patent agent:
None (2190) · Blétry aîné (7) · Desnos (7) · Armengaud jeune (5) · Dieuaide (5) · Fayollet (3) · Dumas (3) · Bardin (3) · la Société Internationale des Inventions modernes, boul. Saint-Denis, 15 bis Paris (2) · Mennons jeune (2) · Digeon (2) · Nauhardt (2) · Chassevent (2) · Casalonga (2) · J.H. Johnson (2) · Armengaud aîné (2) · Société Matray frères (2) · Société Thirion et Bonnet (2) · Thirion (2) · A. Ritter (2)
National tech categories:
None (1893) · FR 6.3 (88) · USPC 244/139 (18) · USPC 244/147 (18) · GB 4 with buoyant (18) · GB 4 propel & steer (16) · USPC 244/142 (15) · GB 4 (14) · USPC 244/153R (12) · GB 4 without buoyant (12) · USPC 244/53A (9) · USPC 244/149 (8) · DE 77 (8) · USPC 244/144 (7) · FR 6.4 (6) · DE 77h.5 (6) · USPC 244/3.1 (6) · GB 4 aërostats (6) · USPC 244/138R (5) · USPC 244/65 (5)
CPCs:
None (1681) · CPC B64C11/006 (114) · CPC B64C11/346 (69) · CPC B64C11/48 (57) · CPC B64C11/36 (41) · CPC B63H1/12 (39) · CPC B64C11/343 (32) · CPC F05B2260/74 (32) · CPC F03D11/00 (31) · CPC Y02E10/722 (31) · CPC B63H1/04 (29) · CPC B64C11/06 (28) · CPC B64C27/33 (21) · CPC B64C3/48 (19) · CPC F03D1/025 (17) · CPC B64C11/065 (14) · CPC Y02E10/74 (13) · CPC Y02E10/72 (13) · CPC F03D3/00 (13)
First filing:
Citations from after 1930:
Number of text pages:

Showing below up to 250 results in range #1 to #250.

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

G

P


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