Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324791 | Antistatic and electrically conducting composition | Bruno Hilti, Carl W. Mayer, Ernst Minder | 1994-06-28 |
| 5310909 | Photochromic compounds, a process for their preparation, and their use | Evelyn Fischer, Walter Fischer, Kurt Meier, Martin Roth | 1994-05-10 |
| 5300663 | Photochromic naphthacenequinones, process for their preparation and the use thereof | Walter Fischer, Evelyn Fischer, Ernst Minder, Manfred Hofmann, Heinz Spahni | 1994-04-05 |