Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & National tech categories : DE 77h.6 or FR 15.2

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Year filed:
1915 (3) · 1916 (8) · 1917 (6) · 1918 (10) · 1919 (2)
Year granted:
1920 (12) · 1921 (7) · 1922 (8) · 1923 (1) · 1924 (1)
Office:
DE (28) · FR (1)
Inventors:
None (10) · Carl Leich (1) · Christian Lorenzen (4) · Curt Pinker (1) · Curt Pinkert (1) · Erwin Wesnigk (1) · Eugen Ludwig Müller (1) · Franz Bernards (1) · Hellmuth Hirth (1) · Jakob Haw (5) · Jules Césario (1) · Oszkár Asbóth (1) · Reinhard Mannesmann (1)
Inventor country:
AT (1) · DE (24) · FR (1) · GB (2) · HU (1)
Inventor location:
None (23) · Berlin (4) · Fischamend (1) · Seine (1)
Applicant person:
None (15) · Carl Leich (1) · Christian Lorenzen (2) · Curt Pinker (1) · Curt Pinkert (1) · Erwin Wesnigk (1) · Franz Bernards (1) · Hans Reissner (1) · Jakob Haw (4) · Jules Césario (1) · Oszkár Asbóth (1)
Applicant firm:
None (20) · Helix Propeller G.m.b.H. (6) · Mercur Flugzeugbau (1) · Österreichische Daimler Motoren A. G. (1) · Zahnradfabrik G.m.b.H. (1)
Applicant type:
COMPANY (8) · INDIV (19) · UNIV-PRO-GOV (2)
Applicant is inventor:
No (6) · Yes (23)
Tech fields:
None (2) · aerial propeller (1) · aerial propellers (1) · aerodynamics (1) · airplane (2) · barometer (1) · construction (1) · design (1) · electricity (1) · engine (1) · frame (1) · marine propeller (1) · metal (1) · method (1) · navigation (1) · propeller (18) · propellers (5) · propulsion (5) · subsystem (3) · transmission (1) · transmission of mechanical power (1) · wing (2)
Filing date:
1915 (3) · 1916 (8) · 1917 (6) · 1918 (10) · 1919 (2)
Full specification filed date:
None (29)
Application number:
None (8) · 304238D (1) · 320732D (1) · 320985D (1) · 324135D (1) · 326211D (1) · 326431D (1) · 327778D (1) · 328800D (1) · 328801D (1) · 328802D (1) · 332540D (1) · 334826D (1) · 341424D (1) · 347803D (1) · 352425D (1) · B0084572 (1) · H0068945 (1) · H0070077 (1) · H0075474 (1) · H0080257 (1) · P0035166 (1)
Grant date:
None (8) · 1920 (9) · 1921 (4) · 1922 (6) · 1923 (1) · 1924 (1)
Granted:
Yes (29)
Publication date:
January 1920 (1) · April 1920 (1) · August 1920 (2) · September 1920 (1) · January 1921 (1) · February 1921 (1) · September 1921 (1) · November 1921 (1) · June 1922 (3) · August 1922 (1)
Supplementary to patent:
None (25) · Patent AT-1916-07-22 Oszkár Asbóth (1) · Patent AT-1916-87037 (1) · Patent DE-1917-305040 (2) · Patent DE-1917-323641 (1)
Related to aircraft:
None (1) · 0 (1) · 1 (20) · Yes (7)
Patent agent:
None (28) · M. Zerolo (1)
Assigned to:
None (29)
National tech categories: (Click arrow to add another value)
IPCs:
None (8) · IPC B64C11/38 (1) · IPC B21D53/78 (1) · IPC B64C11/00 (1) · IPC B64C11/04 (3) · IPC B64C11/06 (2) · IPC B64C11/16 (2) · IPC B64C11/18 (1) · IPC B64C11/20 (3) · IPC B64C11/22 (1) · IPC B64C11/24 (1) · IPC B64C11/34 (4) · IPC B64C11/36 (3) · IPC B64C27/04 (1) · IPC B64C3/14 (1)
CPCs:
None (5) · CPC B21D53/78 (1) · CPC B64C11/00 (2) · CPC B64C11/002 (1) · CPC B64C11/04 (5) · CPC B64C11/065 (2) · CPC B64C11/16 (1) · CPC B64C11/20 (3) · CPC B64C11/22 (1) · CPC B64C11/24 (1) · CPC B64C11/28 (1) · CPC B64C11/34 (1) · CPC B64C11/346 (2) · CPC B64C11/36 (3) · CPC B64C11/42 (1) · CPC B64C27/20 (1) · CPC B64C2700/6281 (1) · CPC B64C3/14 (1) · CPC B64D2700/62701 (1) · CPC B64D2700/6271 (1)
Family year:
None (7) · 1915 (2) · 1916 (8) · 1917 (4) · 1918 (8)
First filing:
None (4) · No (3) · Yes (22)
Cites these patents:
None (29)
Citations from after 1930:
None (28) · 1 (1)
Number of text pages:
1 (6) · 2 (18) · 3 (4) · 4 (1)
Number of claims:
None (5) · 1 - 2 (4) · 2 - 3 (8) · 3 - 4 (3) · 4 - 7 (9)
Number of diagram pages:
None (2) · 1 (27)
Number of figures:
None (2) · 1 - 2 (6) · 2 - 3 (7) · 3 - 9 (13)

Showing below up to 29 results in range #1 to #29.

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