Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11352853 | Wellbore fluid communication tool | Stephen Ross Maddux | 2022-06-07 |
| 11248451 | Bias fabric reinforced ELH element material for improved anchoring | Emile Edmund Sevadjian, Chad William Glaesman | 2022-02-15 |
| 11142985 | Sealing apparatus for high pressure high temperature (HPHT) applications | Shane Patrick Furlong, Shengjun Yin | 2021-10-12 |
| 10989022 | Big bore running tool quick lock adaptor | Carlos Moreno, Odee Daigle, Ryan T. Humphrey | 2021-04-27 |
| 10837265 | Collapsible cone for an expandable liner hanger system | Carlos Moreno | 2020-11-17 |
| 10794157 | Downhole remote trigger activation device for VLH big bore and mono bore configured running tools with programming logic | Emile Edmund Sevadjian, Irvine Cardno Brown, Michael John Christie, Michael A. Reid | 2020-10-06 |
| 10513891 | Running tool lock mechanism | Odee Daigle | 2019-12-24 |
| 9869157 | Reverse circulation cementing system for cementing a liner | Emile Edmund Sevadjian, Arthur Stautzenberger, Richard Paul Noffke, Grant Lynn Hartman, Stephen Ross Maddux +3 more | 2018-01-16 |
| 6402159 | Dielectric gasket | — | 2002-06-11 |
| 4776600 | Dielectric pipe flange gasket | — | 1988-10-11 |
| 4535968 | Valve | John C. Gano | 1985-08-20 |
| 4417600 | Safety valve | — | 1983-11-29 |
| 4406467 | High pressure electrical isolation flange gasket | Edward D. Burger | 1983-09-27 |
| 4330141 | Adjustable pipe union | — | 1982-05-18 |
| 4286657 | Actuator | — | 1981-09-01 |
| 4214606 | Subsurface safety valve | Thomas M. Deaton | 1980-07-29 |
| 4201363 | Tubing retrievable surface controlled subsurface safety valve | Henry P. Arendt, Thomas M. Deaton | 1980-05-06 |