Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5571656 | Multicolor diffusion transfer photographic film elements | Edward D. Kingsley, Avinash C. Mehta, Kenneth C. Waterman | 1996-11-05 |
| 5254455 | Silver halide emulsions spectrally sensitized to infrared radiation with novel cyanine dyes | Zbigniew J. Hinz | 1993-10-19 |
| 4497950 | Benzotriazine compounds | — | 1985-02-05 |
| 4420551 | Novel benzotriazine developers and photographic product and method | — | 1983-12-13 |