Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5288594 | Photographic element and process comprising a development inhibitor releasing coupler and a yellow dye-forming coupler | David M. Niklewicz, Richard P. Szajewski | 1994-02-22 |
| 5217859 | Aqueous, solid particle dispersions of dichalcogenides for photographic emulsions and coatings | John W. Boettcher, Roger L. Klaus | 1993-06-08 |
| 4681828 | Method of chemical electrographic image amplification using chemically active toner particles | Peter S. Alexandrovich, John W. May, Chandra Sreekumar | 1987-07-21 |
| 4284704 | Photographic elements with incorporated hydrogen source photoreductant and tetrazolium salt | James C. Fleming, Ralph T. Brongo | 1981-08-18 |