Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5442689 | Apparatus and method for providing services prior to call completion in a telecommuncation system | Anthony Buttitta, Eric A. Duesing, Wayne R. Kalbow, Liane Toy Tsai | 1995-08-15 |