Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10550137 | Stabilizer for producing a polyester resin, process for preparing the same, process for producing the polyester resin using the same, and the polyester resin produced thereby | Der-Ren Hwang | 2020-02-04 |
| 10301334 | Method for preparing stabilizer containing phosphate-ester | Cheng-Ting Wang, Der-Ren Hwang, Chih-Chien Lin | 2019-05-28 |
| 8581509 | Driving circuit having a power factor correction (PFC) function | Claud Gan | 2013-11-12 |
| 7071625 | LED illuminator with capability of stable brightness | Alan Chiu | 2006-07-04 |
| 6731077 | Modularized LED illuminator | — | 2004-05-04 |