Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155521 | Counter-driven shutter actuator control circuit | Cynthia S. Bell, John D. Meierdiercks | 1992-10-13 |
| 4971931 | Diffuser features for spin-coated films | Armin K. Weiss | 1990-11-20 |