Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883413 | Rotary spiral piston displacement machine having a silicon rubber biased seal | Josef Perevuznik, Fritz Spinnler | 1989-11-28 |
| 4861244 | Spiral displacement machine with concave circular arcs sealingly engaging circular steps | Roland Kolb | 1989-08-29 |
| 4571154 | Device for adjusting the turbine inlet flow cross-section of an exhaust gas turbocharger | — | 1986-02-18 |