Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4349441 | Fluid treatment method and apparatus | Hans-Georg Moll, Andreas Grohmann, Ulrich Hasselbarth | 1982-09-14 |
| 4303103 | Internal sleeve seal and method of use | Wilhelm Fischer | 1981-12-01 |