Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11346389 | Rotary closed-valve vacuum suction device | Kuo-Chang Chen, Chun-Yen Tsao | 2022-05-31 |
| 9239629 | Keystroke determination method and device thereof | Yu-Szu LEE, Chien-Ming Huang | 2016-01-19 |
| 9072395 | Spout interlocking device of a teapot | Kuo-Chang Chen, Ying-Shan Wang | 2015-07-07 |
| D718970 | Kettle | Kuo-Chang Chen | 2014-12-09 |