Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5236586 | Apparatus for the treatment of fluids | Roland Antoni, Georg Mayer, Manfred Raff, Kurt Spranger | 1993-08-17 |
| 4990251 | Resilient sealing ring | Kurt Spranger, Roland Antoni, Joachim Lutterbeck, Gerd Ott, Herbert Raabe | 1991-02-05 |