Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11933132 | Frac plug and method of controlling fluid flow in plug and perforation systems | Christopher Crews, Shawn R. Witt | 2024-03-19 |
| 10435982 | Dissolvable plug assembly | Gustavo Oliveira, Iain Greenan | 2019-10-08 |
| 9752412 | Multi-pressure toe valve | Gustavo Oliveira, Iain Greenan | 2017-09-05 |
| 9404330 | Method and apparatus for a well employing the use of an activation ball | Tracy Speer, John C. Wolf | 2016-08-02 |
| 9045963 | High pressure and high temperature ball seat | John C. Wolf | 2015-06-02 |
| 8701787 | Metal expandable element back-up ring for high pressure/high temperature packer | John C. Wolf | 2014-04-22 |
| 8469088 | Drillable bridge plug for high pressure and high temperature environments | John C. Wolf | 2013-06-25 |
| 8047280 | Drillable bridge plug | Lap Tran, William M. Roberts, George J. Melenyzer | 2011-11-01 |
| 7810558 | Drillable bridge plug | Lap Tran, William M. Roberts, George J. Melenyzer | 2010-10-12 |
| 7401651 | Wellbore fluid saver assembly | — | 2008-07-22 |
| 6782954 | Open hole straddle tool | Witold Serafin, Barry J. Tate | 2004-08-31 |
| 6341653 | Junk basket and method of use | Darryl Firmaniuk, Vitold P. Serafin | 2002-01-29 |
| 6244642 | Retrievable bridge plug and retrieving tool | Vitold P. Serafin, Barry J. Tate | 2001-06-12 |
| 6220348 | Retrievable bridge plug and retrieving tool | Vitold P. Serafin, Barry J. Tate | 2001-04-24 |