Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5426015 | Metallized azo dianion with two cationic dye counter ions for optical information recording medium | Derek D. Chapman, Michael P. Cunningham | 1995-06-20 |
| 5294471 | Optical information recording medium using metallized formazan dyes | Steven Evans | 1994-03-15 |
| 5288691 | Stabilizers for dye-donor element used in thermal dye transfer | Noel R. Vanier, Michel F. Molaire, Paul D. Yacobucci | 1994-02-22 |
| 5272047 | Optical information recording medium using azo dyes | Derek D. Chapman | 1993-12-21 |
| 5248538 | Sulfonamido or amido substituted phthalocyanines for optical recording | William T. Gruenbaum, James J. Krutak | 1993-09-28 |
| 4536598 | Color-forming carboxamidonaphthalene dye precursor and carboximide dye in photographic material and process | James E. Klijanowicz | 1985-08-20 |
| 4469773 | Carbamoyloxy substituted couplers in a photothermographic element and process | Anthony Adin, Delwyn E. Machiele | 1984-09-04 |
| 4423126 | Color-forming carboxamidonaphthalene dye precursor and carboximide dye in photographic material and process | James E. Klijanowicz | 1983-12-27 |