Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7809381 | Presence detection for cellular and internet protocol telephony | Justin A. Aborn, Karl Freter, Sanjay Subir Jhawar, James O'Brien, Mats Samuelsson +2 more | 2010-10-05 |
| 7035647 | Efficient location determination for mobile units | — | 2006-04-25 |
| 6697620 | Method and system for providing telecommunication services across networks that use different protocols | James A. Lamb | 2004-02-24 |