Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5412709 | Digital telephone station line controller | J. Michael Jarvis, Gregory R. S. Ilg | 1995-05-02 |
| 5027341 | Station line switching control system | J. Michael Jarvis, James B. Sherman | 1991-06-25 |