Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247328 | Method and apparatus for charging a photoconductive surface to a uniform potential | Clive R. Daunton, John J. Kopko | 1993-09-21 |
| 4912508 | Automatic background control for an electrostatic copier | David T. Zawadzki, Timothy W. Jacobs, John W. Prebola | 1990-03-27 |