Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7278839 | Multi-stage vacuum pump | Ming-Hsin Liu, Tean-Mu Shen, Jung-Chen Chien, Jiun-Hung Chen | 2007-10-09 |
| 6312242 | Asymmetric double screw rotor assembly | Chun-Chien Chen, Ming-Hsin Liu | 2001-11-06 |
| 6257839 | Double screw rotor assembly with electrically controlled clearance adjustment means | Ming-Hsin Liu, Jiun-Hung Chen | 2001-07-10 |
| 6257854 | Double screw rotor assembly having means to automatically adjust the clearance by pressure difference | Ming-Hsin Liu, Cheng-Chan Tsai | 2001-07-10 |
| 6176694 | Double screw rotor assembly | Zhang-Hua Fong, Hann-Tsong Wang, Cheng-Chan Tsai, Jiun-Hung Chen, Ming-Fong Chen | 2001-01-23 |