Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7735550 | Throttle unit for dump bailer and method of blocking a water out zone in a production well utilizing the same | Chi-San Sun, Chien-I Wu, Lai Fuh Fan, Te Kun Huang, Chen Hui Fan | 2010-06-15 |
| 7694737 | Method of blocking water-out zone in a gas well by dumping cement and injecting pressurizing gas | Chi-San Sun, Chien-I Wu, Lai Fuh Fan, Te Kun Huang, Chen Hui Fan | 2010-04-13 |