Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958245 | Method for regenerating seasoned aqueous fixing or bleach/fixing solutions | Didier J. Martin, Christian Guizard | 1999-09-28 |
| 5679503 | Method and device for the selective extraction of halide ions from photographic baths | Didier J. Martin, Christian Guizard | 1997-10-21 |