Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153635 | Microfilm viewer/printer projection system | Todd A. Kahle, Robert E. Gunst | 1992-10-06 |
| D329247 | Combined microfilm viewer and printer | Todd A. Kahle, Robert E. Gunst, James E. Grace | 1992-09-08 |