Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6738364 | Radio receivers and methods of operation | — | 2004-05-18 |
| 6694143 | System for using a local wireless network to control a device within range of the network | Norman Beamish, John Walley, Hon M. Yung | 2004-02-17 |
| 6674735 | Radio receivers and methods of operation | Nguyen Quan Tat | 2004-01-06 |
| 6653932 | System and method for achieving wireless communications coverage in a local area | Norman Beamish, John Walley, Raymond Hon Mo Yung | 2003-11-25 |
| 6577611 | Methods and apparatus for excluding communication channels in a radio telephone | Nguyen Quan Tat | 2003-06-10 |
| 6404868 | Peer-to-peer transfer using pre-existing caller ID CLASS FSK signaling infrastructure | Norman Beamish, John Walley, Raymond Hon Mo Yung | 2002-06-11 |
| 6310867 | Portable radio telephone and methods of operation | Nguyen Quan Tat | 2001-10-30 |
| 6304642 | Peer-to-peer data transfer using pre-existing caller ID CLASS FSK signaling infrastructure | Norman Beamish, John Walley, Raymond Hon Mo Yung | 2001-10-16 |
| 6091718 | Radio receivers and methods of operation | Nguyen Quan Tat | 2000-07-18 |
| 5991283 | Radio receivers and methods of operation | — | 1999-11-23 |
| 5896570 | Handoff by monitoring of received signal strengths among base stations | Nguyen Quan Tat | 1999-04-20 |
| 5862130 | Portable radio telephones and methods of operation | Nguyen Quan Tat | 1999-01-19 |
| 5845192 | Wireless base station | — | 1998-12-01 |
| 5825757 | Methods and apparatus for excluding communication channels in a radio telephone | Nguyen Quan Tat | 1998-10-20 |