Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8484359 | Providing telephony services to terminals behind a firewall and/or a network address translator | — | 2013-07-09 |
| 8397276 | Protecting a network from unauthorized access | Sean March, David W. McKnight | 2013-03-12 |
| 8244876 | Providing telephony services to terminals behind a firewall and/or a network address translator | — | 2012-08-14 |
| 8108553 | Providing network address translation information | — | 2012-01-31 |
| 7995589 | Controlling voice communications over a data network | David Creech, Gregory T. Osterhout, Christopher Jessen | 2011-08-09 |
| 7940654 | Protecting a network from unauthorized access | Sean March, David W. McKnight | 2011-05-10 |
| 7684317 | Protecting a network from unauthorized access | Sean March, David W. McKnight | 2010-03-23 |
| 7068655 | Network address and/or port translation | Sean March, David W. McKnight | 2006-06-27 |
| 6993595 | Address translation change identification | Gregory Luptowski, Anita Wadhwani, Christopher Haun, Deepashree Rugi | 2006-01-31 |
| 6987765 | Changing media sessions | Sean March, David W. McKnight | 2006-01-17 |
| 6934279 | Controlling voice communications over a data network | David Creech, Gregory T. Osterhout, Christopher Jessen | 2005-08-23 |
| 6771641 | DTMF digit collection and transportation for a packet network | Tahsin Choudhuri, Christopher Haun, Scott L. Orton, Stephen R. Whynot | 2004-08-03 |
| 6757732 | Text-based communications over a data network | Christopher Haun | 2004-06-29 |
| 6614899 | Method and apparatus for providing advanced IP telephony services in an intelligent endpoint | Christopher Jessen, Robert J. Barretto | 2003-09-02 |
| 6393288 | Method of identifying mobile station location to establish homezone feature | Anthony Keaton Holton | 2002-05-21 |
| 6195550 | Method for reducing messaging for inter-VLR location updates | Steve Kolski, Mike Bishop | 2001-02-27 |
| 6169892 | Flow control of authentication triplet request for reducing usage time of a central processor | — | 2001-01-02 |
| 6101380 | Method of re-using authentication triplets on inter-VLR location updates | — | 2000-08-08 |
| 6091952 | Distributed subscriber data management in wireless networks from a central perspective | Jian Xu, Adam E. T. Bryant | 2000-07-18 |
| 6073017 | Distributed subscriber data management in wireless networks from a remote perspective | Jian Xu, Adam E. T. Bryant | 2000-06-06 |
| 6021327 | Mobile communication system having improved visitor location register content management and method of operation | Nhut Nguyen, Stephen Kolski | 2000-02-01 |