Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4766548 | Telelink monitoring and reporting system | Joseph J. Sobodowski | 1988-08-23 |
| 4699295 | Vending machine with improved flexibility of product distribution | Bruce Vahjen, Richard T. Garton, Thomas Williams, Malcolm C. Winsor | 1987-10-13 |
| D287863 | Vending machine for beverages or the like | Bruce Vahjen | 1987-01-20 |