Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7225259 | Service tunnel over a connectionless network | Chi Fai Ho, Alexander Bachmutsky, Henry Tzeng, Ravi Bail Bhat, Himansu Sahu | 2007-05-29 |
| 5903626 | Diagnostic device for troubleshooting remote digital feature phones | David C. Iglehart, Leland Lester, Elie Antoun Jreij, Graham Howard, William J. Beyda | 1999-05-11 |
| 5815562 | Apparatus and method for providing a user with one telephone number that rings phones on heterogeneous systems worldwide | David C. Iglehart, Leland Lester, Roger Bjork, Vedat M. Bilgutay, Lee G. Rosenbaum | 1998-09-29 |
| 5485511 | Method and apparatus for determining the telephony features assigned to a telephone | David C. Iglehart, Robert D. Whittington, Elie Antoun Jreij, Leland Lester | 1996-01-16 |