Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5843629 | Method of treating a seasoned ascorbic acid developer | Philippe Strauel | 1998-12-01 |
| 5688393 | Method for the electro-oxidation of photographic solutions | — | 1997-11-18 |