Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5196297 | Recording material and process of using | Edward J. Dombrowski, James R. Freedman | 1993-03-23 |
| 5028725 | Thiolactone metal complexes | — | 1991-07-02 |
| 4970309 | Synthesis of thiolactones | — | 1990-11-13 |
| 4904572 | Thermographic recording materials and coating composition therefor | Edward J. Dombrowski | 1990-02-27 |
| 4719175 | Novel pyrazole compounds having silver halide development groups | Efthimios Chinoporos, Elbert M. Idelson | 1988-01-12 |
| 4656117 | Azo and azomethine dye developers | Efthimios Chinoporos, Elbert M. Idelson | 1987-04-07 |
| 4652635 | Method for converting ether groups to hydroxyl groups and ester groups to acid groups | — | 1987-03-24 |
| 4563412 | Black image dye-providing materials and photographic products and processes utilizing same | Stephen G. Stroud | 1986-01-07 |
| 4481278 | Chrome complexed dye developer compounds and photographic products and processes | Stephen G. Stroud | 1984-11-06 |
| 4481286 | Ligands and photographic process | Stephen G. Stroud | 1984-11-06 |
| 4404136 | Chrome complexed azo or azomethine hexadentate dyes | Elbert M. Idelson | 1983-09-13 |