Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5041550 | Infra-red sensitizing dyes for silver halide | Bernard A. Lea, Ronald W. Burrows, Charles G. Barlow, Ivan H. Skoog | 1991-08-20 |
| 4959294 | Infra-red sensitising dyes for silver halide | Bernard A. Lea, Ronald W. Burrows, Charles G. Barlow, Ivan H. Skoog | 1990-09-25 |
| 4818663 | Photographic materials and color proofing system | Stephen R. Powers | 1989-04-04 |