Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4949389 | Optical ranked-order filtering using threshold decomposition | Jan P. Allebach, Donald W. Sweeney | 1990-08-14 |
| 4838644 | Position, rotation, and intensity invariant recognizing method | George F. Schils, Donald W. Sweeney | 1989-06-13 |
| 4674824 | System for enhancement of optical features | Joseph W. Goodman, Lambertus Hesselink | 1987-06-23 |