Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931866 | Distributed coaxial light source producing constant target luminance | Arthur M. Charlesworth | 1990-06-05 |
| 4219847 | Method and apparatus of determining the center of area or centroid of a geometrical area of unspecified shape lying in a larger x-y scan field | Charles I. Perratt | 1980-08-26 |