Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11773691 | Remotely operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell | 2023-10-03 |
| 11377928 | Downhole isolation valves with pressure relief | — | 2022-07-05 |
| 10954749 | Bidirectional downhole isolation valve | — | 2021-03-23 |
| 10947798 | Bidirectional downhole isolation valve | — | 2021-03-16 |
| 10895130 | Remotely operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell | 2021-01-19 |
| 10890048 | Signal operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell, Frederick T. Tilton | 2021-01-12 |
| 10837275 | Leak detection for downhole isolation valve | — | 2020-11-17 |
| 10787900 | Differential pressure indicator for downhole isolation valve | Kyle Allen King, Christopher L. McDowell, Brian Mickens | 2020-09-29 |
| 10619440 | Communication through a hanger and wellhead | Christopher L. McDowell | 2020-04-14 |
| 10513904 | Provision of internal lines in a well tool | Christopher L. McDowell | 2019-12-24 |
| 10344562 | Riser annular isolation device | Christopher L. McDowell | 2019-07-09 |
| 10273767 | Bidirectional downhole isolation valve | — | 2019-04-30 |
| 10214999 | Remotely operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell | 2019-02-26 |
| 10180041 | Isolation valve with debris control and flow tube protection | Christopher L. McDowell, Paul L. Smith | 2019-01-15 |
| 10151171 | Signal operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell, Frederick T. Tilton | 2018-12-11 |
| 10138710 | Bidirectional downhole isolation valve | — | 2018-11-27 |
| 10132137 | Bidirectional downhole isolation valve | Christopher L. McDowell, Kyle Allen King, Simon J. Harrall | 2018-11-20 |
| 10107053 | Three-way flow sub for continuous circulation | Ram K. Bansal, Miroslav Mihalj, Bill Menard, Thomas F. Bailey, David Pavel +3 more | 2018-10-23 |
| 10107075 | Downhole isolation valve | Michael Brian Grayson, Julmar Shaun S. Toralde, Christopher L. McDowell | 2018-10-23 |
| 10006262 | Continuous flow system for drilling oil and gas wells | Ram K. Bansal, Geoff George, Gerald Wes Don Buchanan, Justin R. CUNNINGHAM, Eisenhower De Leon +2 more | 2018-06-26 |
| 9650884 | Use of downhole isolation valve to sense annulus pressure | Gary L. Mueller | 2017-05-16 |
| 9518445 | Bidirectional downhole isolation valve | — | 2016-12-13 |
| 9394762 | Isolation valve with debris control and flow tube protection | Christopher L. McDowell, Paul L. Smith | 2016-07-19 |
| 9353587 | Three-way flow sub for continuous circulation | Ram K. Bansal, Miroslav Mihalj, Bill Menard, Thomas F. Bailey, David Pavel +3 more | 2016-05-31 |
| 9163481 | Remotely operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell | 2015-10-20 |