Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216458 | Apparatus and method for testing visual accuity and contrast sensitivity | Pete Kaldis, Richard Unger | 1993-06-01 |
| 4844607 | Vision tester with color corrected illuminating system | Pete Kaldis | 1989-07-04 |
| 4201319 | Dispensing system employing liquid cryogen | Robert C. Eisenberg | 1980-05-06 |