Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10149783 | Negative pressure oral apparatus | Chung-Chu Chen, Marina Sirota, Zhen Yao | 2018-12-11 |
| 9387117 | Negative pressure oral apparatus | Chung-Chu Chen, Marina Sirota, Zhen Yao | 2016-07-12 |
| 7599398 | Method and apparatus for dynamically adjusting system timers in wireless networks to optimize connection performance | Pak Leung, Charles Okwudiafor | 2009-10-06 |