Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6585369 | Preparations for ink-jet printing on common household surfaces | Otto Sievert, Stephan W. Emmenegger | 2003-07-01 |
| 6015143 | Automatic document feeder having universal output tray | Juan Jimenez, A. Justine Worley, Charles W. Dodge | 2000-01-18 |
| 4573129 | Automatic pen-sensor | David L. Paulsen | 1986-02-25 |
| 4417258 | Bi-directional pen changer | Richard M. Kemplin | 1983-11-22 |