Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523615 | Method and apparatus for in situ purging a xerographic developer | David D. Feenstra, Robert L. Fey | 1985-06-18 |
| 4502514 | Toner cartridge and method of replenishing toner to a xerographic device | Philip D. Ballard, Paul J. Josephson, Andrew D. Keller, Larry W. Lykins, Jeffrey Jay Miller | 1985-03-05 |