Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850697 | Resonant piezoelectric chopper for infrared radiation | Larry J. Schoennauer, Ronald B. Alers, Keith Kaste, Ross E. Johnson | 1989-07-25 |
| 4817601 | Catheter system for controlled removal by radiant energy of biological obstructions | Laurence A. Roth, Stephen J. Herman, Carl R. Turnquist, Edward L. Sinofsky | 1989-04-04 |
| 4795240 | High speed infrared shutter | Lawrence J. Schoennauer | 1989-01-03 |