Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4397538 | Belt alignment system | Vittorio Castelli, Willard J. Opocensky | 1983-08-09 |
| 4367031 | Edge guide for belt tracking | — | 1983-01-04 |
| 4344693 | Belt tracking system | — | 1982-08-17 |
| 4286706 | Belt tracking system | Vittorio Castelli | 1981-09-01 |
| 4215932 | Replenishable photoconductive system | Vittorio Castelli, Stephen T. Chai | 1980-08-05 |
| 4206994 | Belt tensioning system | Morton Silverberg | 1980-06-10 |
| 4197002 | Pneumatic system for supporting and steering a belt | Morton Silverberg | 1980-04-08 |