Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4660811 | Synthetic-resin compression spring | Dieter Muhlhahn, Gino Marsella, Friedhelm Detzner, Dieter Simons, Hermann Haarkotter | 1987-04-28 |
| 4525924 | Method for producing a plurality of semiconductor circuits | — | 1985-07-02 |
| 4463148 | Contact lens and compositions | Peter Hofer, Ulrich Muller, Manfred Barenz, WOLFGANG GEORG KONRAD MÜLLER-LIERHEIM | 1984-07-31 |
| 4332922 | Process for rendering silicone rubber contact lenses hydrophilic | Gerhard Kossmehl, Dietrich Quast | 1982-06-01 |