Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669688 | Display panel projector and method of using same | Kenneth W. Baar, Sidney Sitachitt, Graham H. Brewis, Arthur P. Minich, Paul R. Corsaro +1 more | 1997-09-23 |
| 5566039 | Read/write head positioning device | — | 1996-10-15 |
| 5447279 | Bi-compliant tape guide | Don Janssen, Christian A. Todd | 1995-09-05 |
| 5224641 | Air bearing for tape drive | — | 1993-07-06 |
| 5219129 | Tape threading mechanism | Christian A. Todd | 1993-06-15 |
| 5160078 | Rotating compliant tape guide | — | 1992-11-03 |
| 4758460 | Air filter | Joseph T. Wills | 1988-07-19 |
| 4631077 | Foam plastic air filter | Joseph T. Wills | 1986-12-23 |
| D270833 | Extended play cassette | — | 1983-10-04 |
| 4405098 | Extended play cassette | — | 1983-09-20 |