Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8027319 | Methods and systems for wireless number portability without WNP query | Frances Chin, Sandra True, Huixian Song | 2011-09-27 |
| 7672666 | Method and system for implementing vehicle functions through a mobile communication device | Sandra True | 2010-03-02 |
| 7535999 | Voice mail bridging in communication systems | Frances Chin, Sandra True | 2009-05-19 |
| 7254382 | Toll payment service via wireless communication networks | Sandra True | 2007-08-07 |