Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618556 | Chemically resistant pinhole camera | — | 2003-09-09 |
| RE35947 | Optical element having durability enhancing layer | Alfred J. Amell | 1998-11-03 |
| 5312663 | Optical element having durability enhancing layer | Alfred J. Amell | 1994-05-17 |
| 4366225 | Monitoring device with processing solution reservoirs | — | 1982-12-28 |