Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5288593 | Photographic material and process comprising a coupler capable of forming a wash-out dye (Q/Q) | William J. Begley, Hans G. Ling, Teh-Hsuan Chen | 1994-02-22 |
| 5286613 | Photographic material comprising a combination of couplers forming washout and non-washout dyes | William J. Begley, Hans G. Ling | 1994-02-15 |
| 5279929 | Photographic material and process comprising a coupler capable of forming a wash-out dye (C/C) | William J. Begley, Hans G. Ling, Teh-Hsuan Chen | 1994-01-18 |