Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4553828 | Recirculative document inverter | William R. Burger, Morton Silverberg | 1985-11-19 |
| 4299478 | Bound document apparatus for a copier | Ruediger W. Knodt, Terrence D. Charland, Charles J. Hull, John L. Webb, John R. Yonovich | 1981-11-10 |
| 4295732 | Bound document apparatus latching mechanism | Charles J. Hull, Teri J. Mahuson | 1981-10-20 |