Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602655 | Black-and-white developing compositions and methods of use | Alan S. Fitterman | 2003-08-05 |
| 5994039 | Black-and-white photographic developing composition and a method for its use | Alan S. Fitterman, Shirleyanne E. Haye, Janet M. Huston | 1999-11-30 |
| 5738979 | Black-and-white development processing method with replenishment | Alan S. Fitterman, Franklin C. Brayer | 1998-04-14 |
| 5474879 | Radiographic film developers containing ascorbic acid and thioether development accelerators | Alan S. Fitterman | 1995-12-12 |