Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490347 | Method and apparatus for providing telecommunications trunk group selection for use in a public network in accordance with customer preference | Craig L. DeCaluwe, Robert G. Demmert, Patricia A. Litzo, Joseph McCarthy | 2002-12-03 |
| 6275578 | Method and apparatus for providing back-up, in-band signaling in a communications network | Nicholas D. De Trana, Craig L. DeCaluwe, Hossein Eslambolchi, Patrick H. Fischer | 2001-08-14 |
| 6195416 | Method to trap a called number in a telecommunications network | Craig L. DeCaluwe, Robert G. Demmert, Joseph H. Mc Carthy | 2001-02-27 |