Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44716 | Internet switch box, system and method for internet telephony | John D. Wimsatt | 2014-01-21 |
| 7715413 | Multi-network exchange system for telephony applications | Herbert R. Graefe, Xin Wang, Andrew Pletch, Jeffrey Harold Paige | 2010-05-11 |
| 7106726 | Internet switch box, system and method for internet telephony | John D. Wimsatt | 2006-09-12 |
| 6671272 | Internet switch box, system and method for internet telephony | John D. Wimsatt | 2003-12-30 |
| 6377570 | Internet switch box, system and method for internet telephony | John D. Wimsatt | 2002-04-23 |
| 5291479 | Modular user programmable telecommunications system with distributed processing | Brian R. Bolon, Brent E. Bryson, John Emerick | 1994-03-01 |