Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932022 | Integrated voice and data telephone system | Clare G. Keeney, Gary Passon, Chris D. Foster, Frank Fritsch | 1990-06-05 |
| 4407020 | Automatic compensation circuit and method | Bradley A. Helliwell, David G. Messerschmitt | 1983-09-27 |