Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9399692 | Amphiphilic reservoir protecting agent and preparation method thereof and drilling fluid | Guancheng Jiang, Yang Xuan, Xi Wang, Ranran Song, Xianzhu Wu +3 more | 2016-07-26 |
| 6980434 | Computer fan assembly mechanism having filtering and sterilizing functions | Chieh Ou Yang | 2005-12-27 |
| 6949228 | Sterilizing photo catalyst device of air conditioner | Chieh Ou Yang | 2005-09-27 |
| 6797044 | Air filter device | Chieh Ou Yang | 2004-09-28 |