Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5495522 | Method and apparatus for audio teleconferencing a plurality of phone channels | Bruce S. Allen, Marshall B. Garrison, Philip S. Brodsky, Philip J. Baun, Jr., Gary R. McCarthy +1 more | 1996-02-27 |
| 4413250 | Digital communication system for remote instruments | Ronald G. Porter, Rolf W. Siemon | 1983-11-01 |