Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6197484 | Method of making a single part color photographic processing composition in slurry form | Hailing Duan, Mani Philipose | 2001-03-06 |
| 5914221 | Single part color photographic processing composition in slurry form | Hailing Duan, Mani Philipose | 1999-06-22 |
| RE35795 | Method of making flowable alkaline thiosulfate/alkaline sulfite and the product thereof | Charles Pfeiffer | 1998-05-12 |
| H1648 | Method for storing and regenerating photographic processing solutions | — | 1997-05-06 |
| 5328814 | Method of making flowable alkaline thiosulfate/alkaline sulfite and the product thereof | Charles Pfeiffer | 1994-07-12 |
| 5270154 | Method of making flowable alkaline thiosulfate/alkaline sulfite and the product thereof | Charles Pfeiffer | 1993-12-14 |
| 4882264 | Color developer composition | Edward C. Saunders, Harris R. Miller | 1989-11-21 |
| 4780398 | Bleaching composition and process for color photographic materials | — | 1988-10-25 |
| 4565776 | Photographic developer composition | Thomas E. Salamy | 1986-01-21 |