Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894358 | Thermal imaging with ylide dyes | Michael P. Filosa, Cheryl P. Petersen | 1990-01-16 |
| 4598158 | Novel image dye-providing materials and photographic products and processes | Gary N. Widiger | 1986-07-01 |
| 4415737 | Thiazolidine-substituted phenyl sulfonamides | David Messersmith | 1983-11-15 |
| 4386150 | Novel image dye-providing materials and photographic products and processes | Gary N. Widiger | 1983-05-31 |