Drilldown: Patents

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Patents > Office : FR or UN & National tech categories : DE 77h or FR 6.4 & IPCs : IPC B64C23/00 or IPC B64C31/06 or None & Number of text pages: 1-2 & Number of diagram pages: 1-2

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Office: (Click arrow to add another value)
Inventors:
None (5) · Oswald François Leopold Keun (3) · Henri Liurette (2) · Lucien Fouque (2) · Jean Desbois (2) · Maurice-Achille Lécuyer (2) · Adrien-Edmond Martinot (2) · Alvaro Da Cunha (2) · Alexis Canizarès (2)
Inventor country:
Applicant person:
None (15) · Maurice-Achille Lécuyer (2) · Henri Liurette (2) · Jean Desbois (2) · Lucien Fouque (2) · Alvaro Da Cunha (2) · Alexis Canizarès (2) · Adrien-Edmond Martinot (2)
Applicant is inventor:
Tech fields:
airplane (33) · Hybrid (15) · design (13) · helicopter (13) · propulsion (13) · frame (12) · stability (11) · None (10) · propellers (9) · Ascension (8) · lift (8) · kite (7) · propeller (6) · Construction (6) · airfoil (6) · Aerodynamics (6) · wings (6) · navigation (5) · control (5)
Full specification filed date:
Application number:
None (8)
Granted:
Related to aircraft:
Patent agent:
None (11) · None (8) · J. Germain (4) · Boramé et Julien (4) · Paul Caquet (3) · Matray frères et Cie (3) · Armengaud jeune (3) · E. Blétry (3) · Charles Dony (2) · J. Bonnet-Thirion (2) · Lavoix et Mosès (2) · H. Bœttcher fils (2) · Dupont et Elluin (2) · Ch. Faber (2) · Charles Assi (2)
National tech categories: (Click arrow to add another value)
IPCs: (Click arrow to add another value)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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