Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6005934 | Simulating changes in telephone subscriber line | — | 1999-12-21 |
| 5398282 | Automatic sidetone selector | Christopher Michael Forrester, Guy Fortier, Norbert Diesing, W. J. Leonard McCready | 1995-03-14 |
| 5287404 | Telephone subscriber line voltage change detection | Robert J. Miller, Richard J. Malyszka, Andre Robert | 1994-02-15 |