Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476703 | Control unit of a valve mechanism | Hans-Otto Geltsch | 2002-11-05 |
| 5238418 | Multipolar electric coupling device | — | 1993-08-24 |
| 5032087 | Electrical coupling device | Helmut Steinhardt | 1991-07-16 |
| 4952176 | Electrical coupling device | Helmut Steinhardt | 1990-08-28 |