Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11722601 | Content coded zip tones for agents and conference call participants, and user-adjustable tone attribute | Valentine C. Matula, Shamik Shah | 2023-08-08 |
| 7610055 | Synchronizing information across telecommunications terminals for multiple users | George Erhart, Valentine C. Matula, David Skiba | 2009-10-27 |