Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5557669 | Channel interface unit | Steven B. Perry | 1996-09-17 |
| 5557670 | Channel interface unit | Steven B. Perry | 1996-09-17 |
| 5557672 | Channel interface unit | Steven B. Perry | 1996-09-17 |
| 4937851 | Loop status verification system | Daniel Lynch | 1990-06-26 |
| 4864598 | Loop status verification system | Daniel Lynch | 1989-09-05 |