Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D574328 | Surge protector | Caesar Chen, Donald Chen, Greg Fournier | 2008-08-05 |
| 6582343 | Adjustable step exerciser | Chih-Liang Chen | 2003-06-24 |
| 6533710 | Hip exerciser | Chih-Liang Chen | 2003-03-18 |
| D452719 | Exerciser | Chih-Liang Chen | 2002-01-01 |
| 6003797 | Meat mincer combination having a mincer device replaceable structure | — | 1999-12-21 |
| 5904214 | Power assist anti-tip wheel system for invalid carriage | — | 1999-05-18 |
| D398345 | Foot support for an exerciser | — | 1998-09-15 |
| 5503251 | Straddle yoke assembly for bicycles | — | 1996-04-02 |
| 4998815 | Sunglass frame structure | — | 1991-03-12 |
| 4951322 | Detachable mono-glass sports goggles | — | 1990-08-28 |