Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7657007 | Method and apparatus for instant voice messaging | David Ward | 2010-02-02 |
| 6958980 | Establishing call sessions between terminals through plural switch systems | Peter Tarle, Mitchell D. Coffin, Adel E. Mostafa, Francois Audet | 2005-10-25 |