Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5024493 | Compact infrared lens arrangement including at least three reflections | Lawrence W. Kessler, Richard Draxler | 1991-06-18 |
| 4989928 | Compact infrared lens arrangement including at least three reflections | Lawrence W. Kessler, Richard Draxler | 1991-02-05 |
| 4919519 | Fluid thermal compensation system | James Preston Hopkins | 1990-04-24 |
| 4487502 | Model EO 1000 multispectral computerized lens evaluation station | Lawrence W. Kessler, Richard Draxler | 1984-12-11 |