Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6330144 | Multi-voltage multi-pole safety electric adapter | Shen Su-Chen Li | 2001-12-11 |
| 6328581 | Universal electric adapter | Shen Su-Chen Li | 2001-12-11 |
| 6247941 | Combination electric connector having multiple grounding prong receiving portions and a plug unit secured by means of a plurality of hooks and coupling flanges | Shen Su-Chen Li | 2001-06-19 |
| 6227883 | Electric combination socket | S. S. Chen Li | 2001-05-08 |
| 6220880 | Electric outlets | S. S. Chen Li | 2001-04-24 |
| 6154127 | Left/right turn, failure/overtaking vehicle signal light control system | S. S. Chen Li | 2000-11-28 |
| 6111772 | Universal, voltage variable, safety enhanced electric connector | S. S. Chen Li | 2000-08-29 |
| 6049989 | Three-dimensional homologous surveying method and the related instrument | — | 2000-04-18 |
| 6010347 | Universal electric socket | — | 2000-01-04 |
| 5938459 | Electric plug plate | S. S. Chen Li | 1999-08-17 |
| D412699 | Electrical adapter | — | 1999-08-10 |
| 5919060 | Safety electric socket adapter | — | 1999-07-06 |
| 5885109 | Electrical adapters | S. S. Chen Li | 1999-03-23 |
| 5702259 | Safety socket and plug arrangement | — | 1997-12-30 |
| 5667059 | Switch mount | — | 1997-09-16 |
| 5577923 | 125V/250V safety electric socket devices | — | 1996-11-26 |
| 5138771 | Three dimensional homologous surveying instrument | — | 1992-08-18 |
| 5007848 | Multipurpose safety receptacle | — | 1991-04-16 |