Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9436858 | Simple and precise radio frequency locating system and method | — | 2016-09-06 |
| 9405942 | Application system having an active RFID tag, a coordinator, and a reader/writer transmitting an action instruction index to the active RFID tag, and method thereof | Changzheng Sun | 2016-08-02 |
| 9070061 | Method and system for applying an active radio frequency identification (RFID) tag having a first filter to exclude invalid signals and a second filter to perform a validity judgment | Changzheng Sun | 2015-06-30 |
| 8291737 | Automatic extrusion device | Roger Huang, Newer Wang, George Chang | 2012-10-23 |
| 8242958 | System and method for positioning using signal transmit power and signal receive packet error ratio | Changzheng Sun | 2012-08-14 |
| 7651265 | Infrared clinical thermometer | Gavin Yang, Vincent Weng, Eileen Chen | 2010-01-26 |
| 7490980 | Method for calibrating infrared thermometer | Vincent Weng, James Huang | 2009-02-17 |
| 6669750 | Access port for house vacuum equipped with removable trap | Yeay-Cin Chen, Jun-Sheng Hsu, Wan-ly Chen | 2003-12-30 |