Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11185960 | Positioning structure of clamper of threading machine for racket | — | 2021-11-30 |
| 9908009 | String clamping device of threading machine for racket | — | 2018-03-06 |
| 9379609 | Voltage adjustment system with variable resistance connected to the voltage feedback | HSIANG-PIN TSENG | 2016-06-28 |
| 9240683 | Over-current regulating system | HSIANG-PIN TSENG | 2016-01-19 |
| 9054536 | System and method for charging and discharging battery | Hung-Yi Wang, HSIANG-PIN TSENG | 2015-06-09 |
| 8792192 | Lens barrel and lens module | Kuo-Wen Chang | 2014-07-29 |
| 8558817 | Optical touch-control system | Kuo-Wen Chang | 2013-10-15 |
| 8421414 | Mobile electronic device and power management method of battery module thereof | Tien-Peng Yu | 2013-04-16 |
| 8303440 | Positioning device for holding member of sport racket stringing machine | — | 2012-11-06 |
| 8196913 | Clamping assembly for clamping strings of stringing machine for sport rackets | — | 2012-06-12 |
| 7893795 | Circuit device having inductor and capacitor in parallel connection | Chin-Li Wang | 2011-02-22 |
| 7715163 | Electronic system and cell module thereof | HSIANG-PIN TSENG | 2010-05-11 |
| 7646168 | Electrical device with adjustable voltage | HSIANG-PIN TSENG, Tien-Peng Yu | 2010-01-12 |
| 7485055 | String clamping device | — | 2009-02-03 |
| 7252606 | Clamping device for clamping strings of stringing machine for sport rackets | — | 2007-08-07 |
| 6764418 | Stringer of a racket | — | 2004-07-20 |
| 6533687 | String clip positioning device of a racket string stretcher | — | 2003-03-18 |
| D396783 | Wine bottle rack | — | 1998-08-11 |
| 5090697 | Racket frame stringing machine | — | 1992-02-25 |