Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5903716 | Virtual printer | Charles M. Kimber, Michael Steen | 1999-05-11 |
| 5638497 | Virtual printer | Charles M. Kimber, Michael Steen | 1997-06-10 |
| 5371837 | Virtual printer | Charles M. Kimber, Michael Steen | 1994-12-06 |