Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688635 | Toning of photographic print material | Michael Parker | 1997-11-18 |
| 5376510 | Concentrated photographic developing solution | Michael Parker, Terence C. Webb, William E. Long | 1994-12-27 |
| 4857152 | Peroxide electrodes | Fraser Armstrong | 1989-08-15 |