Drilldown: Patents

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Patents > Inventor country : DZ or None & Applicant is inventor: Yes

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Inventor country: (Click arrow to add another value)
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Application number:
Granted:
Supplementary to patent:
None (2826) ·   (6) · Patent FR-1880-139386 (3) · Patent FR-1909-395148 (3) · Patent FR-1881-143264 (2) · Patent DE-1899-123884 (2) · Patent FR-1916-491738 (2) · Patent BE-1913-253298 (2) · Patent FR-1900-299924 (2) · Patent US-1911-1109891 (2) · 1 (2)
Patent agent:
None (2694) · None (15) · Desnos (13) · Blétry aîné (10) · Armengaud jeune (10) · Dieuaide (8) · Chassevent (7) · Société Marillier et Robelet (6) · Dumas (5) · Société Louis Gudman et Cie (4) · Armengaud aîné (4) · Casalonga (4) · Nauhardt (4) · Thirion (4)
National tech categories:
None (2340) · FR 6.3 (187) · FR 6.4 (26) · USPC 244/139 (18) · USPC 244/147 (18) · USPC 244/142 (16) · BE K (14) · USPC 244/153R (13) · GB 4 (13) · DE 77 (13) · GB 4 propel & steer (12) · USPC 244/53A (9) · GB 4 without buoyant (9) · GB 4 with buoyant (9) · USPC 244/149 (9) · USPC 244/144 (7) · FR 5 (7) · DE 77h.5 (7)
IPCs:
None (2822) · IPC B64C39/00 (9) · IPC B64C23/00 (9) · IPC B64C11/00 (5) · IPC B64B1/00 (4) · IPC B64C17/00 (4) · IPC B64C3/54 (3) · IPC B64C5/04 (3) · IPC B64B1/58 (3) · IPC B64C3/00 (3)
First filing:
Citations from after 1930:
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