Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8705519 | Method and apparatus for localized voice over internet protocol usage | Michael J.B. Epstein, John Giannandrea, Mark A. Verber | 2014-04-22 |
| 8509137 | Method and apparatus for sending presence messages | Debby Hindus, Elaine Brechin, Jesse Dorogusker, Anna E. Hagstrom, Scott Mainwaring +6 more | 2013-08-13 |
| RE42901 | Common gateway to call control systems | Terry R. Weissman, James R. Eveningham, Shirish Andhare, Daphne Luong, John Giannandrea +1 more | 2011-11-08 |
| 7286521 | Localized voice over internet protocol communication | Michael J.B. Epstein, John Giannandrea, Mark A. Verber | 2007-10-23 |
| 6956497 | Method and apparatus for sending presence messages | Debby Hindus, Elaine Brechin, Jesse Dorogusker, Anna E. Hagstrom, Scott Mainwaring +6 more | 2005-10-18 |
| 5285496 | Methods and apparatus for providing a secure paging system | Edward H. Frank | 1994-02-08 |
| 5109514 | Method and apparatus for executing concurrent CO processor operations and precisely handling related exceptions | Robert B. Garner, Kwang G. Tan | 1992-04-28 |