Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6581589 | Solar cell with a solar collector and storage elements | Giuseppe Fent | 2003-06-24 |
| 5487409 | Spool valve | Kurt Stoll, Herbert Kongeter | 1996-01-30 |
| 5306993 | System of driving by electric motor machines which work in a periodic manner at torque variable as a function of the angle of rotation | Jacob Rudolf Metz, Gerhard Fenkart | 1994-04-26 |
| 5163478 | Spool valve having improved sealing characteristics | — | 1992-11-17 |
| 4900440 | Dynamic pressure filter | Heinrich Ziegler | 1990-02-13 |