Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8419047 | Folding device for wheelchair | — | 2013-04-16 |
| D622641 | Wheelchair | Yu Chen | 2010-08-31 |
| 7012796 | Electrostatic discharge protection apparatus | Sheng-Guo Chen | 2006-03-14 |
| 6836397 | Electrostatic discharge protection apparatus for a circuit board | Sheng-Guo Chen | 2004-12-28 |
| RE38219 | Mold-pressing device | Cheng-Ho Lee | 2003-08-19 |
| 6324954 | Device for actuating a punch | — | 2001-12-04 |
| 6219925 | Punch having changeable punching member | — | 2001-04-24 |
| 6189220 | Punch having changeable punching member | — | 2001-02-20 |
| 5749278 | Mold-pressing device | Cheng-Ho Lee | 1998-05-12 |
| 5343004 | Non-sparking rotatable switch apparatus | — | 1994-08-30 |
| 5196986 | Capacitor | — | 1993-03-23 |