Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890135 | Photoconductive drum cleaning apparatus | Kenneth W. Gardiner, Norman F. Mangal | 1989-12-26 |
| 4511238 | Traversing, intermittently contacting sheet pickoff for electrophotographic copier | — | 1985-04-16 |
| 4367035 | Liquid developer electrostatic copier for shipboard use | — | 1983-01-04 |
| 4231562 | Recirculating document feeder | — | 1980-11-04 |