Drilldown: Patents

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Patents > Inventor country : RO or None & Filing date: 1900 - 1999 & IPCs: None

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Applicant is inventor:
Tech fields:
None (571) · airplane (36) · propulsion (29) · propellers (18) · stability (18) · design (16) · LTA (16) · navigation (14) · wings (12) · control (12) · frame (11) · Aerodynamics (9) · balloons (9) · construction (8) · subsystem (8) · propeller (7) · balloon (6) · airship (5) · safety (5) · Marine (5)
Full specification filed date:
Application number:
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National tech categories:
None (653) · BE K (15) · HU V/h (10) · IT 8 (5) · AT 77d (4) · DE 77h.5 (4) · DE 77h (4) · AU 90.3 (2)
IPCs: (Click arrow to add another value)
CPCs:
None (316) · CPC B64C39/00 (28) · CPC B64C2700/6295 (27) · CPC B64C3/00 (25) · CPC B64C17/00 (20) · CPC B64C23/005 (17) · CPC B64C3/385 (17) · CPC B64C35/00 (16) · CPC B64C11/006 (16) · CPC B64C2700/6233 (16) · CPC B64C13/00 (15) · CPC B64C3/18 (13) · CPC B64C2700/6256 (12) · CPC B62C5/04 (12) · CPC B64C2700/6212 (12) · CPC B64C2700/6274 (11) · CPC B64C33/00 (10) · CPC B64B1/00 (10) · CPC B64F2700/6261 (10)
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Cites these patents:
Citations from after 1930:
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