Philipp Doerhoefer
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Philipp Dörhöfer (Doerhoefer) was an engineer and aero inventor. He filed patents from Roelkestrasse 126B, Weissensee, near Berlin, Germany.
DPMA isn't showing his DE patent of 1910. It may be what we call a "ghost" patent, filed but not granted, and yet the ancestor of international patents.
He has other non-aero German patents listed in DPMA. This person had 0 publications and 4 patents in this database.
Patents whose inventor or applicant is Philipp Doerhoefer
- Patent FR-1910-413267 (English title: Airship with keel, Supplementary to patent: DE 1910-01-01, Filing date: 1910-03-04)
- Patent GB-1910-7443 (English title: An Improvement in Airships, Supplementary to patent: Patent DE-1910-01-05, Filing date: 1910-03-24)
- Patent FR-1911-438053 (English title: Elastic suspension of the running frame in flying machines, Supplementary to patent: Patent DE-11-06-20, Filing date: 1911-12-23)
- Patent GB-1912-265 (English title: Improvements in Spring Devices for the Running Wheels of Flying Machines, Supplementary to patent: Patent DE June 20, 1911, Filing date: 1912-01-03)
References
Names | Philipp Doerhoefer; Philipp Dörhöfer |
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Countries | DE |
Locations | Weissensee, Berlin |
Occupations | engineer |
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Family name | Dörhöfer |
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