Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7805139 | Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor | Kamel M. Shaheen, Girish Patel, Mark O'Brien | 2010-09-28 |
| 7580707 | Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor | Kamel M. Shaheen, Girish Patel, Mark O'Brien | 2009-08-25 |
| 6549771 | Enhanced method and system for programming a mobile telephone over the air within a mobile telephone communication network | Kim Chang, Robert E. Denman | 2003-04-15 |
| 6498790 | Time division multiple access cellular system supporting packet data transmissions on reconfigurable packet data channels and method of operation | Kamel M. Shaheen, Akbar Rahman | 2002-12-24 |
| 6438369 | Network directed system selection for cellular and PCS enhanced roaming | Kim Chang, Girish Patel | 2002-08-20 |
| 6374109 | Wireless communication system and subscriber unit that support selection of operation from multiple frequency bands and multiple protocols and method of operation therefor | Kamel M. Shaheen | 2002-04-16 |
| 6363251 | Network directed system selection for cellular and PCS enhanced roaming | Kim Chang, Girish Patel | 2002-03-26 |
| 6285881 | Method and system for quickly finding a control channel in a private cellular system | — | 2001-09-04 |
| 6223028 | Enhanced method and system for programming a mobile telephone over the air within a mobile telephone communication network | Kim Chang, Robert E. Denman | 2001-04-24 |
| 6219539 | Systems and methods for implementing private wireless communications | Kalyan Basu, Girish Patel | 2001-04-17 |
| 6169893 | Wireless communication system that supports multiple standards, multiple protocol revisions, multiple extended services and multiple extended services delivery options and method of operation therefor | Kamel M. Shaheen, Girish Patel, Mark O'Brien | 2001-01-02 |
| 6128490 | Wireless communication system that supports selection of operation from multiple frequency bands and multiple protocols and method of operation therefor | Kamel M. Shaheen | 2000-10-03 |
| 6058309 | Network directed system selection for cellular and PCS enhanced roaming | Kim Chang, Girish Patel | 2000-05-02 |
| 5896411 | Enhanced reverse link power control in a wireless communication system | Farhan Ali, Alberto Gutierrez, Kim Chang, Serge M. Manning | 1999-04-20 |
| 5794147 | Method and system for quickly finding a control channel in a private cellular system | — | 1998-08-11 |