Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131818 | High-pressure water pump having a polyetheretherketone cylinder bushing for pure water | Wolfram Wittkop | 1992-07-21 |
| 4913628 | Radial piston pump for pumping water | Wolfram Wittkop | 1990-04-03 |