Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118423 | Downhole tool for use in a borehole | Frank Acosta | 2021-09-14 |
| 11105166 | Buoyancy assist tool with floating piston | Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil, Rajesh Parameshwaraiah | 2021-08-31 |
| 11072990 | Buoyancy assist tool with overlapping membranes | Min Mark Yuan, Ishwar Dilip Patil, Mayur Narain Ahuja, Clayton Reed Bonn | 2021-07-27 |
| 11008838 | Switchable crossover tool with hydraulic transmission | Bo Gao, Aniruddha D. Gadre, Yuzhu Hu, Gary Joe Makowiecki | 2021-05-18 |
| 10995583 | Buoyancy assist tool with debris barrier | Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil, Rajesh Parameshwaraiah | 2021-05-04 |
| 10989013 | Buoyancy assist tool with center diaphragm debris barrier | Min Mark Yuan, Mayur Narain Ahuja, Ishwar Dilip Patil, Byong Jun Kim, Rajesh Parameshwaraiah | 2021-04-27 |
| 10914135 | Attachments for mitigating set cement downhole | Venkata Gopala Rao Palla | 2021-02-09 |
| 10914133 | Switchable crossover tool with rotatable chamber | Bo Gao, Aniruddha D. Gadre, Yuzhu Hu, Gary Joe Makowiecki | 2021-02-09 |
| 10883334 | Multi-segmented plug | Bo Gao, David Li | 2021-01-05 |
| 10648286 | Methods for cementing a well using a switchable crossover device | Bo Gao, Aniruddha D. Gadre, Yuzhu Hu, Gary Joe Makowiecki | 2020-05-12 |
| 10557329 | Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool with rotatable sleeve | Bo Gao, Aniruddha D. Gadre, Yuzhu Hu, Gary Joe Makowiecki | 2020-02-11 |
| 10378296 | Sealed downhole equipment and method for fabricating the equipment | Luke Christopher Downey, Paul Joseph Jones, Nicholas Frederick Budler, Todd Anthony Stair | 2019-08-13 |
| 10053945 | Breakaway obturator for downhole | Frank Acosta, Nicholas Frederick Budler, John Key | 2018-08-21 |
| 9988872 | Pressure relief-assisted packer | Frank Acosta | 2018-06-05 |
| 9476273 | Pressure activated down hole systems and methods | Frank Acosta, John Key, Nicholas Frederick Budler | 2016-10-25 |
| 9291007 | Floating apparatus and method for fabricating the apparatus | Robert P. Darbe, Henry E. Rogers, Paul Joseph Jones, Misty D. Rowe, Jeffery Dwane Karcher | 2016-03-22 |
| 9169705 | Pressure relief-assisted packer | Frank Acosta | 2015-10-27 |
| 8991486 | Remotely activated down hole systems and methods | Frank Acosta, Nicholas Frederick Budler | 2015-03-31 |
| 8708056 | External casing packer and method of performing cementing job | Frank Acosta, Nicholas Frederick Budler, John Key | 2014-04-29 |
| 8646537 | Remotely activated downhole apparatus and methods | Timothy R. Tips, James R. Longbottom, Ricky L. Covington, Michael Linley Fripp, Frank Acosta +2 more | 2014-02-11 |
| 8616276 | Remotely activated downhole apparatus and methods | Timothy R. Tips, James R. Longbottom, Ricky L. Covington, Michael Linley Fripp, Frank Acosta +2 more | 2013-12-31 |
| 5040602 | Inner string cementing adapter and method of use | — | 1991-08-20 |
| 4825902 | Flapper valve with protective hinge pin sleeve | — | 1989-05-02 |
| 4729432 | Activation mechanism for differential fill floating equipment | — | 1988-03-08 |
| 4470726 | Leg closure | — | 1984-09-11 |