Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8789600 | Fracing system and method | Maria M. O'Connell, Yang Xu, Hector H. Mireles | 2014-07-29 |
| 8668013 | Plug counter, fracing system and method | Maria M. O'Connell, Yang Xu, Hector H. Mireles | 2014-03-11 |
| 8607811 | Injection valve with indexing mechanism | — | 2013-12-17 |
| 8297358 | Auto-production frac tool | Calvin J. Stowe, II | 2012-10-30 |
| 8205637 | Flow-actuated actuator and method | — | 2012-06-26 |
| 8047293 | Flow-actuated actuator and method | Yang Xu, Richard YingQing Xu, Ronnie D. Russell, Namhyo Kim | 2011-11-01 |
| 7967076 | Flow-actuated actuator and method | Namhyo Kim, Yang Xu | 2011-06-28 |