Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5721632 | Excited state polarization altering optical filter | Richard I. Billmers, Swapan K. Gayen | 1998-02-24 |
| 5513032 | Actively pumped faraday optical filter | Richard I. Billmers, Vincent M. Contarino, David Allocca, William Scharpf | 1996-04-30 |