Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4479211 | Method and apparatus for controlling ports in a digital conference arrangement | Jeffery G. Blaschak, Mohamed A. Marouf, Paul W. Vancil, David F. Winchell | 1984-10-23 |