Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6143487 | Photothermographic elements | James B. Philip, Jr., Gary Featherstone, Thomas J. Kub | 2000-11-07 |
| 5041550 | Infra-red sensitizing dyes for silver halide | Bernard A. Lea, Ronald W. Burrows, Thomas D. G. Hellings, Charles G. Barlow | 1991-08-20 |
| 4959294 | Infra-red sensitising dyes for silver halide | Bernard A. Lea, Ronald W. Burrows, Thomas D. G. Hellings, Charles G. Barlow | 1990-09-25 |
| 4404277 | Desensitizing dyes for photographic emulsions | — | 1983-09-13 |