Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728582 | Ceramic sliding element with aluminum oxide and silicon nitride members | Hans-Jurgen Comans, Hans Jud, Hans-Gerd Rittel | 1988-03-01 |
| 4716869 | Valve guide for an internal combustion engine | Ulf Dworak, Hans Olapinski, Dieter Fingerle | 1988-01-05 |
| 4595663 | Sintered ceramic shaped article wholly or predominantly of eutectic microstructure constituents | Hans Olapinski, Ulf Dworak | 1986-06-17 |
| 4535683 | Piston with a member made of partially stabilized zirconium oxide | Ulf Dworak, Hans Olapinski, Dieter Fingerle | 1985-08-20 |
| 4526824 | Thermal insulation lining of ceramic material for a hot gas duct enveloped in metal | Ulf Dworak, Hans Olapinski, Dieter Fingerle | 1985-07-02 |
| 4524732 | Cylinder head of a piston engine | Ulf Dworak, Hans Olapinski, Dieter Fingerle, Martti J. A. Hakulinen, Bengt Palm | 1985-06-25 |
| 4522415 | Piston ring for an internal combustion engine | Ulf Dworak, Hans Olapinski, Dieter Fingerle | 1985-06-11 |
| 4522171 | Pre-combustion or turbulence chamber for internal combustion engines | Ulf Dworak, Hans Olapinski, Dieter Fingerle | 1985-06-11 |
| 4519359 | Mullite plate | Ulf Dworak, Hans Olapinski, Dieter Fingerle, Martti J. A. Hakulinen, Bengt Palm | 1985-05-28 |
| 4484981 | Papermaking dewatering apparatus having wire support means with cooling water feed means | Karl-Dieter Fuchs | 1984-11-27 |
| 4420142 | Machine component of oxide ceramic material | Ulf Dworak, Hans Jud, Hans Olapinski, Dieter Fingerle | 1983-12-13 |