Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10717615 | Paper pickup mechanism | Kuan Cheng Huang, Yung Kai Chen | 2020-07-21 |
| 9111704 | Rotary paddle level switch | Chih-Wen Wang, Cheng-Tao Lee, Ting-Kuo Wu, Chao-Kai Cheng | 2015-08-18 |
| 8950255 | Sensing device for detecting material depth, liquid-level, and temperature | Liang-Chi Chang, Cheng-Lun Chang, Chao-Kai Cheng | 2015-02-10 |
| D398559 | Buckle | — | 1998-09-22 |