Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674559 | Process for the preparation of a polymer matrix which becomes cloudy as a function of temperature | Heinz Riemer, Ludger Bosing, Thomas Pollok, Petra Grünberg | 1997-10-07 |
| 5636610 | Multi-chamber rotary piston-engine | — | 1997-06-10 |