Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8249021 | Methods and apparatuses for CDMA2000/GPRS roaming | Raymond Hsu | 2012-08-21 |
| 8160580 | Systems and methods for home carrier determination using a centralized server | Raymond Hsu | 2012-04-17 |
| 8036698 | Mobile station message having a station class mark field for indicating an MEID capable mobile station | Ragulan Sinnarajah, Ravindra Manohar Patwardhan, Leslie Chiming Chan, Edward G. Tiedemann, Jr., Walid M. Hamdy +3 more | 2011-10-11 |
| 7983242 | Packet data service with circuit-switched call notification | Raymond Hsu, Arungundram C. Mahendran | 2011-07-19 |
| 7966000 | Secure bootstrapping for wireless communications | James Semple, Gregory G. Rose | 2011-06-21 |
| 7773554 | Methods and apparatus for CDMA2000/GPRS roaming | Raymond Hsu | 2010-08-10 |
| 7715822 | Secure bootstrapping for wireless communications | James Semple, Gregory G. Rose | 2010-05-11 |
| 7715829 | Method and apparatus for supporting enhanced international dialing in cellular systems | Yan Li | 2010-05-11 |
| 7675885 | Methods and apparatus for CDMA2000/GPRS roaming | Raymond Hsu | 2010-03-09 |
| 7415026 | Method and apparatus for session release in a communication system | Raymond Hsu | 2008-08-19 |
| 7336949 | International dialing for wireless networks | — | 2008-02-26 |