Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6953046 | Microprocessor-based gas meter | Tzong-Sheng Lee, Chao-Wei Yeh, Chi-Fu Hung, Wen-Yang Chou, Hsiao-Lung Ning +1 more | 2005-10-11 |
| 6644330 | Unidirectional retroaction electromagnetic valve | Chien-An Chen | 2003-11-11 |