| Patent | Date |
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Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly
Grant 8,480,376 - Knox , et al. July 9, 2 | 2013-07-09 |
Electrical submersible pump system connection adapter
Grant 8,419,390 - Merrill , et al. April 16, 2 | 2013-04-16 |
Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly
Grant 8,400,093 - Knox , et al. March 19, 2 | 2013-03-19 |
System, method and apparatus for electrical submersible pump assembly with pump discharge head having an integrally formed discharge pressure port
Grant 8,328,529 - Thompson , et al. December 11, 2 | 2012-12-11 |
System, method and program product for cable loss compensation in an electrical submersible pump system
Grant 8,314,583 - Yohanan , et al. November 20, 2 | 2012-11-20 |
Systems and methods for automatic forward phasing determination in a downhole pump system
Grant 8,287,246 - Plitt , et al. October 16, 2 | 2012-10-16 |
Device and method for gas lock detection in an electrical submersible pump assembly
Grant 8,141,646 - Allen , et al. March 27, 2 | 2012-03-27 |
System and method for an AC powered downhole gauge with capacitive coupling
Grant 8,138,622 - Layton , et al. March 20, 2 | 2012-03-20 |
System and method for adding voltages of power modules in variable frequency drives
Grant 8,125,177 - Rider , et al. February 28, 2 | 2012-02-28 |
Systems and Methods for Downhole OFDM Communications
App 20120037354 - McCoy; Robert H. ; et al. | 2012-02-16 |
Insulated bearings for downhole motors
Grant 7,950,906 - Hall, Jr. , et al. May 31, 2 | 2011-05-31 |
Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly
App 20110051297 - Knox; Dick L. ; et al. | 2011-03-03 |
Device, Computer Program Product and Computer-Implemented Method for Backspin Detection in an Electrical Submersible Pump Assembly
App 20110050144 - Knox; Dick L. ; et al. | 2011-03-03 |
Systems and Methods for Automatic Forward Phasing Determination in a Downhole Pump System
App 20110033314 - Plitt; Sheldon ; et al. | 2011-02-10 |
Electrical Submersible Pump System Connection Adapter
App 20100150751 - Merrill; Dan A. ; et al. | 2010-06-17 |
System and Method for Adding Voltages of Power Modules in Variable Frequency Drives
App 20090309524 - Rider; Jerald R. ; et al. | 2009-12-17 |
Systems and methods for power ride-through in variable speed drives
Grant 7,607,896 - Leuthen , et al. October 27, 2 | 2009-10-27 |
System, Method and Program Product For Cable Loss Compensation In An Electrical Submersible Pump System
App 20090256519 - Yohanan; Tom G. ; et al. | 2009-10-15 |
Device and Method For Gas Lock Detection In An Electrical Submersible Pump Assembly
App 20090250210 - Allen; Robert D. ; et al. | 2009-10-08 |
System, Method And Apparatus For Electrical Submersible Pump Assembly With Pump Discharge Head Having An Integrally Formed Discharge Pressure Port
App 20090196774 - Thompson; Joseph Scott ; et al. | 2009-08-06 |
Insulated Bearings For Downhole Motors
App 20090047156 - Hall, JR.; Clarence F. ; et al. | 2009-02-19 |
Pressurized bearing system for submersible motor
Grant 7,492,069 - Knox , et al. February 17, 2 | 2009-02-17 |
System And Method For An Ac Powered Downhole Gauge
App 20090021393 - Layton; James E. ; et al. | 2009-01-22 |
Systems and Methods for Power Ride-Through in Variable Speed Drives
App 20070263331 - Leuthen; John M. ; et al. | 2007-11-15 |
Motor cooler for submersible pump
Grant 7,188,669 - Bullock , et al. March 13, 2 | 2007-03-13 |
Systems and methods for driving large capacity AC motors
Grant 7,161,456 - Knox January 9, 2 | 2007-01-09 |
Motor cooler for submersible pump
App 20060081377 - Bullock; Aaron Duane ; et al. | 2006-04-20 |
Pressurized bearing system for submersible motor
App 20050269885 - Knox, Dick L. ; et al. | 2005-12-08 |
Systems and methods for driving large capacity AC motors
App 20040184292 - Knox, Dick L. | 2004-09-23 |
Pressurized bearing system for submersible motor
App 20040080224 - Knox, Dick L. ; et al. | 2004-04-29 |
Pothead Connector With Elastomeric Sealing Washer
App 20040014359 - Knox, Dick L. | 2004-01-22 |
Pothead connector with elastomeric sealing washer
Grant 6,676,447 - Knox January 13, 2 | 2004-01-13 |
Method for multi-phase data communications and control over an ESP power cable
Grant 6,587,037 - Besser , et al. July 1, 2 | 2003-07-01 |
Vibration damping system for ESP motor
Grant 6,566,774 - Parmeter , et al. May 20, 2 | 2003-05-20 |
Pressurized bearing system for submersible motor
App 20020153789 - Knox, Dick L. ; et al. | 2002-10-24 |
Vibration damping system for ESP motor
App 20020125777 - Parmeter, Larry James ; et al. | 2002-09-12 |
Method for boosting the output voltage of a variable frequency drive
App 20010032721 - Rider, Jerald R. ; et al. | 2001-10-25 |
Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores
Grant 6,167,965 - Bearden , et al. January 2, 2 | 2001-01-02 |
Laminated motor bearing for electrical submersible pump
Grant 5,189,328 - Knox February 23, 1 | 1993-02-23 |
Cooling system for electrical components
Grant 4,790,373 - Raynor , et al. December 13, 1 | 1988-12-13 |
Subsea well submersible pump installation
Grant 4,589,492 - Greiner , et al. May 20, 1 | 1986-05-20 |
Motor variable frequency drive
Grant 4,491,778 - Knox , et al. January 1, 1 | 1985-01-01 |
Continuous pressure and temperature readout for submersible pumps
Grant 4,477,230 - Knox , et al. October 16, 1 | 1984-10-16 |
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