Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047293 | Flow-actuated actuator and method | Yang Xu, Richard YingQing Xu, Namhyo Kim, Lale Korkmaz | 2011-11-01 |
| 7896082 | Methods and apparatus for negating mineral scale buildup in flapper valves | Gary B. Lake | 2011-03-01 |