Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5424475 | Thermal imaging dye precursors | Roger A. Boggs, Patrick R. Conlon, Richard L. Cournoyer, Ernest W. Ellis, David P. Waller | 1995-06-13 |
| 5192645 | Thermal imaging method | Roger A. Boggs, Patrick R. Conlon, Richard L. Cournoyer, Ernest W. Ellis, David P. Waller | 1993-03-09 |
| 4960901 | Thermal imaging method | Ernest W. Ellis | 1990-10-02 |
| 4826976 | Color-shifted dyes with thermally unstable carbamate moiety comprising T-alkoxycarbonyl group | Ernest W. Ellis, Donald A. McGowan | 1989-05-02 |
| 4745046 | Thermal imaging method | Ernest W. Ellis | 1988-05-17 |
| 4720449 | Thermal imaging method | Ernest W. Ellis | 1988-01-19 |
| 4663518 | Optical storage identification card and read/write system | Ernest W. Ellis, Faramarz Faramarzpour, Hugh R. MacKenzie, Donald A. McGowan | 1987-05-05 |
| 4617402 | Novel xanthene compounds and their photographic use | Louis Cincotta, John Lee | 1986-10-14 |
| 4615966 | Color transfer photographic processes and products with indole phthalein filter dyes | Efthimios Chinoporos, Cheryl P. Petersen | 1986-10-07 |
| 4602263 | Thermal imaging method | Ernest W. Ellis, Donald A. McGowan | 1986-07-22 |
| 4469877 | Photographic products | Ernest W. Ellis | 1984-09-04 |
| 4416971 | Novel xanthene compounds and their photographic use | Louis Cincotta, John Lee | 1983-11-22 |
| 4388398 | Photographic products and processes with silver halide solvent precursors | Ernest W. Ellis | 1983-06-14 |
| 4382119 | Novel photographic products and processes | Ernest W. Ellis | 1983-05-03 |
| 4359574 | Thiazine-1,1-dioxide and isothiazole-1,1-dioxide derivatives | Stanley M. Bloom, James W. Foley | 1982-11-16 |
| 4348529 | Synthesis of cyclic disulfone compounds | Ernest W. Ellis, Charles E. Hammond | 1982-09-07 |
| 4345018 | Sulfonyl-cyano alkane silver halide solvents | Richard B. Greenwald | 1982-08-17 |
| 4311839 | Benzisothiazole and naphtho-1,2-thiazine compounds | Louis Cincotta, James W. Foley, Marcis M. Kampe | 1982-01-19 |
| 4264507 | Novel xanthene dye developers | Louis Cincotta, Edmond M. Mahoney, Michael H. Feingold | 1981-04-28 |
| 4264704 | Novel xanthene dye developers | Louis Cincotta, Edmond M. Mahoney, Michael H. Feingold | 1981-04-28 |
| 4259498 | Process for preparing benzisothiazole-1,1-dioxide and naphtho-1,2-thiazine-1,1-dioxide compounds | Stanley M. Bloom, James W. Foley | 1981-03-31 |
| 4250244 | Thiacyanine betaine blue sensitizing dyes | Ruth L. Hill | 1981-02-10 |
| 4231929 | Sulfam(na)phthaleins | Stanley M. Bloom, James W. Foley | 1980-11-04 |
| 4228075 | Novel sulfam(na)phthaleins | Stanley M. Bloom, James W. Foley | 1980-10-14 |
| 4204061 | Sulfam(na)phthaleins | Stanley M. Bloom, James W. Foley | 1980-05-20 |