Issued Patents 2022
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11519258 | Pressure testing casing string during reverse cementing operations | Jinhua Cao | 2022-12-06 |
| 11519242 | Telescopic stage cementer packer | Avinash Gopal Dharne, Ishwar Dilip Patil, Frank Acosta | 2022-12-06 |
| 11512545 | Downhole check valve assembly with a ratchet mechanism | Min Mark Yuan, Stephen Yeldell, Frank Acosta, Kevin Wendell Ardoin | 2022-11-29 |
| 11499395 | Flapper disk for buoyancy assisted casing equipment | Rajesh Parameshwaraiah, Min Mark Yuan, Handoko Tirto Santoso | 2022-11-15 |
| 11492867 | Downhole apparatus with degradable plugs | Min Mark Yuan, Frank Acosta | 2022-11-08 |
| 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 |
| 11255131 | High opening pressure poppet valve | Todd Anthony Stair, Carlos Valdez, Saul Emmanuel Vazquez, Michael Malave, Christopher James Mericas | 2022-02-22 |
| 11255155 | Downhole apparatus with removable plugs | Min Mark Yuan, Frank Acosta, Rajesh Parameshwaraiah | 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 |