Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597686 | Photographic silver halide emulsion containing contrast improving dopants | Eric L. Bell | 1997-01-28 |
| 5411855 | Photographic element exhibiting improved speed and stability | Roger Lok | 1995-05-02 |
| 5372926 | Transition metal complex with nitrosyl ligand dopant and iridium dopant combinations in silver halide | Dorothy J. Beavers | 1994-12-13 |
| 5135845 | Sensitizing dye for photographic materials | Richard L. Parton, Wayne W. Weber, II | 1992-08-04 |
| 4957855 | Photographic recording material with improved raw stock keeping | Roger Lok | 1990-09-18 |