Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8306057 | Method and system for providing presence information related to a communications network | — | 2012-11-06 |
| 8059613 | Implementing redirect on interoperability gateway for CDMA terminated PTT calls | Steven Barrow, Trinh D. Vu | 2011-11-15 |
| 8036648 | System and method for operating a user functionality in a mobile communications device | Steven Barrow | 2011-10-11 |
| 8027316 | Efficient selection of interoperability gateway for CDMA terminated PTT calls | Steven Barrow, Trinh D. Vu | 2011-09-27 |
| 7831266 | Method and system for routing a push-to-talk (PTT) call in a communications network | — | 2010-11-09 |
| 7822437 | System and method for dispatch roaming registration | Steven Barrow, Ojas T. Choksi, Arun Manroa | 2010-10-26 |
| 7636580 | Method and apparatus for handling integrated digital enhanced network calling restrictions | Steven Barrow | 2009-12-22 |