Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7926572 | Ballistically compatible backpressure valve | Zafer Erkol | 2011-04-19 |
| 7857067 | Downhole application for a backpressure valve | Zheng Rong Xu, Patrick Schorn, Lawrence J. Leising | 2010-12-28 |
| 7793732 | Backpressure valve for wireless communication | Zheng Rong Xu | 2010-09-14 |
| 7654318 | Fluid diversion measurement methods and systems | Iain Cooper, Bart Thomeer, Colin Whittaker, Carolina Dautriche, Murtaza Ziauddin +8 more | 2010-02-02 |
| 7191844 | Inflate control system for inflatable straddle stimulation tool | Michael H. Kenison, William D. Eatwell, Joseph K. Flowers | 2007-03-20 |