Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6155502 | Nozzle device for purging a vacuum pump | Tean-Mu Shen, Cheng-Chan Tsai, Jung-Chen Chien, Tsung-Hsin Lin | 2000-12-05 |
| 6123526 | Multistage pump and method for assembling the pump | Chun-Chien Chen, Tean-Mu Shen, Jung-Chen Chien, Tsung-Hsin Lin | 2000-09-26 |