Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672372 | Hydrogen storage device for avoiding powder dispersion | Yu-Chu Li, Shih-Ming Lee | 2004-01-06 |
| 6638040 | Dry vacuum pump | Chih-Cheng Wang, Cheng Chou Shieh, Weng-Shih Cang | 2003-10-28 |