Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9228939 | Refractive fuel concentration detector | Yung-Lieh Chien | 2016-01-05 |
| 7688053 | Variable voltage regulating device | Yung-Lieh Chien, Ming-Sheng Chen | 2010-03-30 |
| 7533566 | Fluid measuring device | Yung-Lieh Chien | 2009-05-19 |
| 7533567 | Capacitance fuel volume measuring apparatus for fuel cell | — | 2009-05-19 |
| 7411379 | Apparatus and method for over-voltage and over-current protection for a step-up current-mode converter | Kwan-Jen Chu, Chung-Lung Pai, Jing-Meng Liu | 2008-08-12 |