Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314790 | Tone control of photographic silver images | J. Ramon Vargas, Paul A. Burns | 1994-05-24 |
| 5292627 | Tone control of photographic images | J. Ramon Vargas, Paul A. Burns | 1994-03-08 |
| 5292631 | Radiographic elements with improved covering power | J. Ramon Vargas, Paul A. Burns | 1994-03-08 |