Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455210 | Aqueous thermally beachable composition useful in a photothermographic element | Mark E. Irving, Ramanuj Goswami | 2002-09-24 |
| 5026628 | Photographic material and process comprising a compound capable of forming a wash-out dye | William J. Begley, Teh-Hsuan Chen, Jerrold N. Poslusny, Wojciech K. Slusarek | 1991-06-25 |
| 4853319 | Photographic silver halide element and process | Sundaram Krishnamurthy, Brian H. Johnston, David C. Vogel, Paul R. Buckland | 1989-08-01 |
| 4849328 | Cyan dye-forming couplers and photographic materials containing same | David Hoke | 1989-07-18 |
| 4775616 | Cyan dye-forming couplers and photographic materials containing same | David Hoke | 1988-10-04 |
| 4753871 | Cyan dye-forming couplers and photographic materials containing same | David Hoke | 1988-06-28 |
| 4273708 | Carbonyl-substituted cyan azo dye-providing materials | Colin Holstead | 1981-06-16 |
| T994003 | Azo dyes, azo dye-releasing compounds and photographic products and processes employing them | — | 1980-05-06 |
| 4195993 | Compounds which release cyan dyes or dye forming materials | Colin Holstead | 1980-04-01 |