DE950169 is one of five patent documents linked from the source dossier on Heinrich Focke and the Focke Rochen. The title is given on the archive page, truncated, as:
Hubschrauber mit Schraubenblaettern…
("Helicopter with propeller blades…")
What the source provides
The archive page supplies only the patent number, the truncated title as quoted above, and a link to a PDF hosted on the source archive. It does not give filing or grant dates, the inventor of record, claims, drawings or a description of the patent's contents, and the title itself is incomplete on the page.
Context
The title places the patent in the helicopter category, alongside DE953938 — Kombiniertes Hubschrauber-Drachenflugzeug ("Kombiniertes Hubschrauber-Drachenflugzeug…"). The source does not state which stage of the Rochen project either German patent corresponds to.
Related patents in the same dossier
DE953938 — Kombiniertes Hubschrauber-Drachenflugzeug, US2978037 — Stabilizing Means for Helicopter Aircraft, CA587730 — Flying Machines for Vertical and Horizontal Flight, GB768190 — Improvements in Flying Machines for Vertical and Horizontal Flight.
Source notes & attribution
- Rex Research, "Heinrich FOCKE: Helicopter Glider," https://rexresearch.com/FockeRochen/FockeRochen.html (retrieved 2026-09-17).
- https://rexresearch.com/FockeRochen/FockeRochen.html