Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1035953 | Emergency light | Qiusheng Chen | 2024-07-16 |
| D948368 | Emergency lamp | Qiusheng Chen | 2022-04-12 |
| 10741953 | Transceiver cooling | Juan M. Gonzalez | 2020-08-11 |
| D770661 | Emergency lamp | Qiusheng Chen | 2016-11-01 |
| D770075 | Emergency lamp | Qiusheng Chen | 2016-10-25 |
| 9048685 | Emergency lighting with charging indicator circuitry | Qiusheng Chen | 2015-06-02 |
| 8175251 | Method and system to bypass ENUM to reach a callee via a PSTN or a PLMN | Bernard Ku, Armstrong Soo | 2012-05-08 |
| D643765 | LED emergency light | Zhiping Zhang | 2011-08-23 |
| 7630485 | Method and system to bypass ENUM to reach a callee via a PSTN or a PLMN | Bernard Ku, Armstrong Soo | 2009-12-08 |
| 6933541 | Emitter turn-off thyristors (ETO) | — | 2005-08-23 |
| 6737842 | Method and circuits for reducing dead time and reverse recovery loss in buck regulators | Yuming Bai, Nick Sun | 2004-05-18 |
| 6426666 | Diode-assisted gate turn-off thyristor | Yuxin Li, Kevin Motto | 2002-07-30 |