Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650900 | Dynamic logical coverage areas for wireless base stations | David Chavez | 2003-11-18 |
| 6628948 | Modification of re-registration by a wireless handset in response to a change of logical coverage area | David Chavez, John C. Moran | 2003-09-30 |
| 6603844 | Advertised ring back in a telecommunication switching system | David Chavez | 2003-08-05 |
| 6591102 | Method and system for transmitting feature and authentication information for wireless communication services | David Chavez, Larry J. Hardouin | 2003-07-08 |
| 6519459 | Use of immediate handover to achieve multi-head zones | David Chavez | 2003-02-11 |
| 6510320 | Initialization of dynamic logical coverage areas for wireless base stations | David Chavez | 2003-01-21 |