Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8657528 | Brine disposal system for a brine source | Sung-Wei Chen | 2014-02-25 |
| 6374215 | Signal processing apparatus based upon selective conversion of audio signal to text signal | Khai Pang Tan | 2002-04-16 |
| 6138096 | Apparatus for speech-based generation, audio translation, and manipulation of text messages over voice lines | Khai Pang Tan | 2000-10-24 |