Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4974137 | High intensity indirect lighting fixture | Royal H. Evans, Jr. | 1990-11-27 |
| 4390612 | Colloid relief images formed by oxidized developer transfer | — | 1983-06-28 |
| 4363864 | Colloid relief images by oxidized developer transfer | — | 1982-12-14 |
| 4226927 | Photographic speed transfer element with oxidized polyethylene stripping layer | Gerard H. Kinderman, Ronald S. Steelman | 1980-10-07 |