Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6302743 | Electric outlet assembly with rotary receptacles | Pen-Fu Chiu | 2001-10-16 |
| 5997310 | Swivel electric plug | Wen-Chin Chien | 1999-12-07 |
| 5643012 | Safety plug with switch means | Chao-Lin Mai | 1997-07-01 |
| 5641303 | Lamp socket | — | 1997-06-24 |