Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9036553 | Power saving via variable listen intervals in a WLAN | Tom Nagy | 2015-05-19 |
| 8700038 | Method and system for signalling the transfer of voice calls between access points in a wireless local area network | Rudy Rawlins | 2014-04-15 |
| 6308062 | Wireless telephony system enabling access to PC based functionalities | Andrew Chien | 2001-10-23 |
| 5790074 | Automated location verification and authorization system for electronic devices | Lars Rangedahl, Gregory Ratajski, Andrew Chien | 1998-08-04 |