Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7125018 | Low-friction seal | Herbert Busse | 2006-10-24 |
| 4787206 | Hydraulic pressure transducer | — | 1988-11-29 |
| 4406463 | Low-friction seal | — | 1983-09-27 |
| 4268071 | Device for coupling pipeline flanges | Siegfried Hanchen | 1981-05-19 |