Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4241377 | Film treatment apparatus | — | 1980-12-23 |
| 4213167 | Planar gas and ion distribution | Donald G. Saurenman | 1980-07-15 |
| 4194232 | Ion treatment of photographic film | Donald G. Saurenman | 1980-03-18 |