Issued Patents All Time
Showing 26–50 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11473395 | Downhole check valve assembly with a locking mechanism | Stephen Yeldell, Kevin Wendell Ardoin, Min Mark Yuan, Frank Acosta | 2022-10-18 |
| 11466520 | Systems and methods for indicating completion of a reverse cementing operation | Tamal Kumar Sen, Venkata Gopala Rao Palla | 2022-10-11 |
| 11448038 | Reverse cementing valve system and method employing a double flapper valve with sliding sleeve and drillable nose | Jinhua Cao, Michael Linley Fripp, Tor Sigve Saetre | 2022-09-20 |
| 11391119 | Differential fill valve with collet sleeve | Rajesh Parameshwaraiah, Min Mark Yuan, Saul Emmanuel Vazquez Niebla, Mayur Narain Ahuja, Tor Sigve Saetre +1 more | 2022-07-19 |
| 11384613 | Wellbore dart with separable and expandable tool activator | Bo Gao, Aniruddha D. Gadre, Yuzhu Hu, Gary Joe Makowiecki | 2022-07-12 |
| 11377920 | Anchoring downhole tool housing and body to inner diameter of tubing string | Rajesh Parameshwaraiah, Frank Vinicia Acosta Villarreal, Maithri Muddasani | 2022-07-05 |
| 11359454 | Buoyancy assist tool with annular cavity and piston | Frank Acosta | 2022-06-14 |
| 11346171 | Downhole apparatus | Min Mark Yuan, Stephen Yeldell, Frank Acosta, Rajesh Parameshwaraiah | 2022-05-31 |
| 11313189 | Downhole check valve assembly with a frustoconical mandrel | Benny E. Dawsey, Stephen Yeldell, Min Mark Yuan | 2022-04-26 |
| 11313202 | Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool | Bo Gao, Aniruddha D. Gadre, Yuzhu Hu, Gary Joe Makowiecki | 2022-04-26 |
| 11293261 | Buoyancy assist tool | Min Mark Yuan, Stephen Yeldell, Frank Acosta, Rajesh Parameshwaraiah, Kevin Wendell Ardoin | 2022-04-05 |
| 11293253 | Dual sub-surface release plug with bypass for small diameter liners | Handoko Tirto Santoso, Tor Sigve Saetre, Frank Vinicia Acosta, Thomas Zachary Vonk, Rajesh Parameshwaraiah | 2022-04-05 |
| 11293252 | Fluid barriers for dissolvable plugs | Samuel J. Lewis, Paul Joseph Jones | 2022-04-05 |
| 11280157 | Multi-stage cementing tool | Frank Acosta | 2022-03-22 |
| 11274519 | Reverse cementing tool | Jinhua Cao, Handoko Tirto Santoso | 2022-03-15 |
| 11261703 | Dual valves for reverse cementing operations | — | 2022-03-01 |
| 11261694 | Apparatus, systems, and methods for dampening a wellbore pressure pulse during reverse circulation cementing | Simon Turton, Paul Joseph Jones, John Paul Bir Singh, Michael Linley Fripp | 2022-03-01 |
| 11255155 | Downhole apparatus with removable plugs | Min Mark Yuan, Frank Acosta, Rajesh Parameshwaraiah | 2022-02-22 |
| 11255131 | High opening pressure poppet valve | Todd Anthony Stair, Carlos Valdez, Saul Emmanuel Vazquez, Michael Malave, Christopher James Mericas | 2022-02-22 |
| 11230905 | Buoyancy assist tool with waffle debris barrier | Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil, Byong Jun Kim, Rajesh Parameshwaraiah | 2022-01-25 |
| 11199071 | Full bore buoyancy assisted casing system | Kevin Wendell Ardoin, Stephen Yeldell, Julio Alberto Cornejo, Frank Acosta, Saul Emmanuel Vazquez Niebla +1 more | 2021-12-14 |
| 11187072 | Fiber deployment system and communication | Luke Christopher Downey, Christopher Lee Stokely, John L. Maida, John Paul Bir Singh | 2021-11-30 |
| 11180987 | Conductive pathways within a wellbore using no-heat liquid solder | William Cecil Pearl, Jr., Samuel J. Lewis | 2021-11-23 |
| 11174701 | Wellbore remedial operations with no-heat liquid solder | William Cecil Pearl, Jr., Samuel J. Lewis, Frank Vinicia Acosta Villarreal | 2021-11-16 |
| 11142994 | Buoyancy assist tool with annular cavity and piston | Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil, Frank Acosta, Clayton Reed Bonn | 2021-10-12 |