Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9581154 | Piston with a heat exchanger | Jianke Wang, Mengzhen Zhang | 2017-02-28 |
| 4516477 | Closure for openings in pumps | Helmut Henschenmacher, Karl-Heinz Ecker, Hartmut Giernalczyk, Siegfried Rutte | 1985-05-14 |
| 4270440 | High pressure piston and seal | — | 1981-06-02 |