Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852391 | Pipeline vehicle | Ola Ruch, Trond V. Johansen, Ludvig Naess, Horst Poerner, Georg R. U. Gebhard +1 more | 1989-08-01 |
| 4793779 | Rotating piston compressor having an axially adjustable rotary sleeve valve | Hans-Peter Schabert, Klaus Zach | 1988-12-27 |
| 4607822 | Shutoff valve with a conical valve seat | Hans-Peter Schabert, Erwin Laurer, Hans Leinweber | 1986-08-26 |