Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5430156 | Color-providing compound having two or more cyclic 1,3 sulfur-nitrogen groups and two or more color-providing moieties | Michael J. Arnost, Donald A. McGowan, David P. Waller | 1995-07-04 |
| 5415970 | Image-recording material | Michael J. Arnost, Donald A. McGowan, David P. Waller | 1995-05-16 |
| 5414091 | Dye-providing compounds | Robert H. Pauze, David P. Waller, David C. Whritenour | 1995-05-09 |
| 5340689 | Image-recording materials with cyclic 1,3-sulfur-nitrogen dye providing compounds | Robert H. Pauze, David P. Waller, David C. Whritenour | 1994-08-23 |
| 5316887 | Thermally developable photosensitive material | Michael J. Arnost, Donald A. McGowan, David P. Waller | 1994-05-31 |
| 4719175 | Novel pyrazole compounds having silver halide development groups | Elbert M. Idelson, Patrick F. King | 1988-01-12 |
| 4656117 | Azo and azomethine dye developers | Elbert M. Idelson, Patrick F. King | 1987-04-07 |
| 4615966 | Color transfer photographic processes and products with indole phthalein filter dyes | Alan L. Borror, Cheryl P. Petersen | 1986-10-07 |