Drilldown: Patents

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Patents > Office : DK or US & Assigned to: None & National tech categories: None

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Office: (Click arrow to add another value)
Inventor country:
Applicant is inventor:
Tech fields:
None (1423) · propeller (63) · Propulsion (53) · marine (43) · airplane (42) · stability (37) · propellers (33) · LTA (28) · frame (27) · windmill (26) · construction (25) · paddle-wheel (19) · helicopter (19) · control (18) · marine propulsion (17) · navigation (17) · design (16) · rudder (15)
Application number:
Granted:
Supplementary to patent:
None (1871) · 1 (2)
Patent agent:
None (1549) · Munn & Co. (32) · None (16) · John P. Tarbox (14) · 1 (12) · Victor J. Evans (10) · Randolph, Jr. (8) · C. A. Snow & Co. (7) · James L. Norris (4) · Joseph F. O'Brien (3) · Joshua R. H. Potts (3) · Pierre Barnes (3) · Chandler & Chandler (3) · Bathul & Bathul? (3) · Davis & Davis (3) · Watson E. Coleman (3)
Assigned to: (Click arrow to add another value)
National tech categories: (Click arrow to add another value)
IPCs:
None (1822) · 1 (10) · IPC B64C3/00 (8) · IPC B64C39/00 (7) · IPC B64C17/00 (6) · IPC B64C13/12 (5) · IPC B64C3/18 (4) · IPC B64C1/00 (3) · IPC B64C27/04 (3) · IPC B64C11/20 (3) · IPC B64C11/04 (3) · IPC B64C23/00 (3) · IPC B64C35/00 (3)
First filing:
Citations from after 1930:

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