Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373081 | Polyether ketones and polyether sulfones based on phenylindane, and the use thereof for optical systems | Dazhong Yang, Oskar Nuyken, Michael-Joachim Brekner, Freddy Helmer-Metzmann | 1994-12-13 |
| 5327017 | Circuit arrangement for switching of RF signals | Bertram Fischer | 1994-07-05 |
| 5300625 | Heteroaromatic polyether | Brigitte Helmreich, Klaus Burger, Reinhold Hecht, Oskar Nuyken | 1994-04-05 |