Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4764919 | Virtual PBX call processing method | William W. Parker, Benjamin Widrevitz | 1988-08-16 |
| 4751697 | Distributed packet switching sytem | James M. Johnson, Jr., Christopher G. McHarg, David A. Pierce, Thomas Starr, Benjamin Widrevitz +2 more | 1988-06-14 |