Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5310642 | DIR couplers with hydrolyzable inhibitors for use in high pH processed films | Paul A. Burns, Phillip D. Knight | 1994-05-10 |
| 5296337 | Process for retouching photographic images containing a dye having a cleavable ballast | John W. Harder, Phillip D. Knight, Paul A. Burns, Lynda D. Weber | 1994-03-22 |
| 5292627 | Tone control of photographic images | Stephen A. Hershey, Paul A. Burns | 1994-03-08 |
| 5292631 | Radiographic elements with improved covering power | Stephen A. Hershey, Paul A. Burns | 1994-03-08 |