Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876181 | Photographic elements containing infrared filter dyes | Gary S. Proehl, Anthony D. Gingello, Richard L. Parton, David A. Stegman, Anthony Adin | 1989-10-24 |
| 4871656 | Photographic silver halide elements containing infrared filter dyes | Richard L. Parton, Anthony D. Gingello, David A. Stegman, Anthony Adin | 1989-10-03 |