Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934911 | Hydraulic rotary piston engine having inproved commutator valve | — | 1990-06-19 |
| 4627801 | Rotary gear machine with commutator and shaft in flange housing | Peter Wusthof, Johann Schneider | 1986-12-09 |