Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362612 | Photographic material containing a non-sensitizing dye absorbing at 670 nm | Paul Callant, Roland Claes | 1994-11-08 |
| 5344749 | Filter dyes for rapid processing applications | Paul Callant | 1994-09-06 |