Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834528 | Infrared photoretinoscope | Frank Schaeffel, Leslie Farkas | 1989-05-30 |
| 4758080 | Pointspread retinoscope | — | 1988-07-19 |
| 4702946 | Coated cylindrical member | — | 1987-10-27 |
| 4642248 | Method for coating cylindrical members | — | 1987-02-10 |