Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9903181 | Communication and lock open safety valve system and method | Doug A. Lowry | 2018-02-27 |
| 9739119 | Penetrator for a puncture communication tool and method | Ronald J. Garr, Brett C. Jones, John D. Lindemann, Michael L. Hair | 2017-08-22 |
| 9068661 | Curved flapper seal with stepped intermediate surface | Robert J. Dyer, Wade A. Miller, Matthew P. Presley, Michael L. Hair | 2015-06-30 |
| 8863767 | Alignment system for flapper valve | Wade A. Miller, Robert J. Dyer, Michael L. Hair, Leonard Medill, Matthew P. Presley | 2014-10-21 |
| 8820402 | Downhole shock absorber with guided crushable nose | Troy L. Smith, II, Anthony S. Coghill, Douglas A. G. Lowery, James T. Sloan | 2014-09-02 |
| 8443894 | Anchor/shifting tool with sequential shift then release functionality | Anthony S. Coghill, Ronald J. Garr | 2013-05-21 |
| 8439118 | Pressure vortex device to allow flapper closure in high velocity fluid applications | Tyler C. Roberts, Grant Thompson | 2013-05-14 |
| 8336628 | Pressure equalizing a ball valve through an upper seal bypass | — | 2012-12-25 |
| 8016035 | Chemical injection check valve incorporated into a tubing retrievable safety valve | Scott C. Strattan, Jeffrey Kroll Adams, Jason Ives, Jeffrey C. Williams | 2011-09-13 |
| 8011428 | Downhole decelerating device, system and method | Michael J. May | 2011-09-06 |
| 7409996 | Control system communication and lock open tool and method for locking open a safety valve and communicating with surface | Scott C. Strattan | 2008-08-12 |
| 6902006 | Lock open and control system access apparatus and method for a downhole safety valve | Scott C. Strattan, Van J. McVicker | 2005-06-07 |
| 6848509 | Pressure equalizing plunger valve for downhole use | — | 2005-02-01 |