Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6871072 | Methods and apparatus for supporting optimum call routing in a cellular telecommunications system | — | 2005-03-22 |
| 6393304 | Method for supporting numeric voice dialing | — | 2002-05-21 |
| 6097968 | Method and apparatus for routing calls to a low power portable | Cecil H. Bannister, Raju Iyer, Kishore Raj, Richard Mo, Sorin Cohn | 2000-08-01 |
| 6049715 | Method and apparatus for evaluating a received signal in a wireless communication utilizing long and short term values | Steven J. Willhoff, John Mayes, Lance Miguel LaBauve, Mark Bruce Pyle | 2000-04-11 |
| 6018653 | Multiple-level home area pricing for cellular mobile telephones | Hannu Petri Hietalahti, Esa Jarvenoja | 2000-01-25 |
| 5809413 | Over the air locking of user identity modules for mobile telephones | Ahti Vaisanen | 1998-09-15 |
| 5787355 | Method and apparatus for wireless trunking to private branch exchanges | Cecil H. Bannister, Raju Iyer, Kishore Raj, Richard Mo, Sorin Cohn | 1998-07-28 |
| 5634192 | Mobile-assisted handoff technique | Donald V. Hanley, Larry D. Chrisman, Michael J. McCarthy | 1997-05-27 |
| 5600708 | Over the air locking of user identity modules for mobile telephones | Ahti Vaisanen | 1997-02-04 |
| 5161249 | Sectored voice channels with rear lobe protection | Donald V. Hanley, Eugenie M. Chaplain | 1992-11-03 |
| 5148548 | Method of monitoring cellular radio channels to avoid adjacent and co-channel interference | Eugenie M. Chaplain | 1992-09-15 |