Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378532 | Positive displacement plunger pump with gas escape valve | Donn J. Brown, Trevor Alan Kopecky | 2019-08-13 |
| 9938806 | Charge pump for gravity gas separator of well pump | Jordan Kirk, Leslie C. Reid | 2018-04-10 |
| 9920773 | Threaded connection having different upper and lower threads for submersible well pump modules | Donn J. Brown | 2018-03-20 |
| 9777561 | Threaded connectors between submersible well pump modules | Jason Hill, Ryan P. Semple, John J. Mack, Scott C. Strattan, Kenneth O'Grady | 2017-10-03 |
| 9677562 | Stepped balance ring for a submersible well pump | David F. McManus | 2017-06-13 |
| 9670758 | Coaxial gas riser for submersible well pump | Donn J. Brown | 2017-06-06 |
| 9541091 | Instrument subs for centrifugal well pump assemblies | Ketankumar Kantilal Sheth | 2017-01-10 |
| 9353753 | Helical driver to reduce stress in brittle bearing materials | Donn J. Brown | 2016-05-31 |
| 8955598 | Shroud having separate upper and lower portions for submersible pump assembly and gas separator | Donn J. Brown, Michael J. Fox | 2015-02-17 |
| 8876500 | Centering coupling for splined shafts submersible pumping systems and electrical submersible pumps | Donn J. Brown | 2014-11-04 |
| 8844614 | Tangential perforation system | Donn J. Brown | 2014-09-30 |
| 8830471 | Measuring operational parameters in an ESP seal with fiber optic sensors | Earl B. Brookbank, Ketankumar Kantilal Sheth, Suresha R. O'Bryan, Steven K. Tetzlaff, Risa Rutter | 2014-09-09 |
| 8817266 | Gas separators with fiber optic sensors | Donn J. Brown, Ketankumar Kantilal Sheth | 2014-08-26 |
| 8801360 | Centrifugal pump with thrust balance holes in diffuser | Ketankumar Kantilal Sheth | 2014-08-12 |
| 8746353 | Vibration method to detect onset of gas lock | Michael Forsberg, Ketankumar Kantilal Sheth, Donn J. Brown, Dehao Zhu | 2014-06-10 |
| 8747078 | Gas separator with improved flow path efficiency | Donn J. Brown | 2014-06-10 |
| 8591205 | Centering coupling for splined shafts submersible pumping systems and electrical submersible pumps | Donn J. Brown | 2013-11-26 |
| 8545125 | Non-parallel splined hub and shaft connection | Donn J. Brown | 2013-10-01 |
| 8528632 | Packer deployment with electric submersible pump with optional retention of the packer after pump removal | John J. Mack | 2013-09-10 |
| 8162600 | System, method and apparatus for two-phase homogenizing stage for centrifugal pump assembly | Donn J. Brown | 2012-04-24 |
| 8141646 | Device and method for gas lock detection in an electrical submersible pump assembly | Robert Allen, John M. Leuthen, Dick L. Knox, Jerald R. Rider, Tom G. Yohanan +1 more | 2012-03-27 |
| 8079418 | Plug in pump for inverted shroud assembly | Donn J. Brown, Steven K. Tetzlaff, John J. Mack | 2011-12-20 |
| 7997335 | Jet pump with a centrifugal pump | Donn J. Brown | 2011-08-16 |
| 7882896 | Gas eduction tube for seabed caisson pump assembly | Christopher K. Shaw | 2011-02-08 |
| 7806186 | Submersible pump with surfactant injection | Donn J. Brown, David H. Neuroth | 2010-10-05 |