Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5511521 | Light-alloy piston with a combustion bowl | Ulrich Bischofberger | 1996-04-30 |
| 5295583 | Process for cleaning short mineral fibers | Ulrich Bischofberger, Ernst Pfleiderer | 1994-03-22 |
| 5136992 | Piston for internal combustion engines with forged sections made of steel | Werner H. Bregler | 1992-08-11 |