Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6074281 | Fining and polishing machine and method for ophthalmic lenses | John R. Keller | 2000-06-13 |
| 5748093 | Electrical surge protection system with condition monitoring | Tom Miller | 1998-05-05 |
| 4205550 | Sample chamber for gas analyzer | — | 1980-06-03 |