Drilldown: Patents

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Patents > Grant date: 1920 - 1929 & National tech categories : DE 77h.6 or USPC 244/30

Use the filters below to narrow your results.

Year filed:
1915 (2) · 1916 (7) · 1917 (4) · 1918 (8)
Year granted:
1916 (1) · 1917 (1) · 1920 (9) · 1921 (3) · 1922 (6) · 1924 (1)
Office:
DE (21)
Inventors:
None (11) · Christian Lorenzen (2) · Curt Pinkert (1) · Erwin Wesnigk (1) · Franz Bernards (1) · Jakob Haw (4) · Oszkár Asbóth (1)
Inventor country:
AT (1) · DE (17) · GB (2) · HU (1)
Inventor location:
None (17) · Berlin (4)
Applicant person:
None (10) · Christian Lorenzen (2) · Curt Pinkert (1) · Erwin Wesnigk (1) · Franz Bernards (1) · Hans Reissner (1) · Jakob Haw (4) · Oszkár Asbóth (1)
Applicant firm:
None (11) · Allgemeine Elektricitäts-Gesellschaft (1) · Helix Propeller G.m.b.H. (7) · Mercur Flugzeugbau (1) · Österreichische Daimler Motoren A. G. (1)
Applicant type:
COMPANY (9) · INDIV (10) · UNIV-PRO-GOV (2)
Applicant is inventor:
No (8) · Yes (13)
Tech fields:
None (21)
Filing date:
1915 (2) · 1916 (7) · 1917 (4) · 1918 (8)
Full specification filed date:
None (21)
Application number:
304238D (1) · 320732D (1) · 320985D (1) · 324635D (1) · 326211D (1) · 326213D (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) · H0070530 (1) · H0080257 (1)
Grant date:
1920 (10) · 1921 (3) · 1922 (7) · 1924 (1)
Granted:
Yes (21)
Publication date:
April 1920 (1) · September 1920 (1) · June 1922 (2) · August 1922 (1)
Supplementary to patent:
None (18) · Patent AT-1916-07-22 Oszkár Asbóth (1) · Patent AT-1916-87037 (1) · Patent DE-1916-332540 (1)
Related to aircraft:
None (1) · 1 (11) · Yes (9)
Patent agent:
None (21)
Assigned to:
None (21)
National tech categories: (Click arrow to add another value)
IPCs:
None (4) · IPC B21D53/78 (1) · IPC B64C11/00 (1) · IPC B64C11/04 (3) · IPC B64C11/06 (1) · IPC B64C11/16 (1) · IPC B64C11/20 (4) · IPC B64C11/22 (1) · IPC B64C11/24 (1) · IPC B64C11/30 (1) · IPC B64C11/34 (2) · IPC B64C11/36 (3) · IPC B64C27/04 (1)
CPCs:
CPC B21D53/78 (1) · CPC B64C11/00 (2) · CPC B64C11/04 (5) · CPC B64C11/065 (1) · CPC B64C11/16 (1) · CPC B64C11/20 (4) · CPC B64C11/205 (1) · CPC B64C11/22 (1) · CPC B64C11/24 (1) · CPC B64C11/30 (1) · CPC B64C11/346 (2) · CPC B64C11/36 (3) · CPC B64C27/20 (1) · CPC B64C2700/6281 (1) · CPC B64D2700/62701 (1) · CPC B64D2700/6271 (1)
Family year:
1915 (2) · 1916 (7) · 1917 (4) · 1918 (8)
First filing:
No (4) · Yes (17)
Cites these patents:
None (21)
Citations from after 1930:
None (21)
Number of text pages:
1 (1) · 2 (14) · 3 (5) · 4 (1)
Number of claims:
None (3) · 1 - 2 (3) · 2 - 3 (4) · 3 - 4 (2) · 4 - 7 (9)
Number of diagram pages:
None (1) · 1 (20)
Number of figures:
None (1) · 1 - 2 (2) · 2 - 3 (5) · 3 - 8 (13)

Showing below up to 21 results in range #1 to #21.

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