Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4471048 | Photographic material | Mario Fryberg | 1984-09-11 |
| 4436811 | Photographic material | Mario Fryberg | 1984-03-13 |
| 4214878 | Filtering apparatus and methods of exchanging particulate filter materials | — | 1980-07-29 |