Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493539 | Method and apparatus for objective determination of visual contrast sensitivity functions | — | 1985-01-15 |
| 4238772 | Image enhancement using on-line spatial filtering | Henning E. von Gierke | 1980-12-09 |