Du; Michael H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Du; Michael H..The latest application filed is for "shear valve system and methodology".
- Du; Michael H. - Manvel TX
- Du; Michael H. - Pearland TX US
| Patent | Date |
|---|---|
| Shear valve system and methodology Grant 9,863,215 - Jayaram , et al. January 9, 2 | 2018-01-09 |
| Protector for electrical submersible pumps Grant 9,528,357 - Du , et al. December 27, 2 | 2016-12-27 |
| Shear Valve System And Methodology App 20160053578 - Jayaram; Murali ; et al. | 2016-02-25 |
| System and method for engaging completions in a wellbore Grant 8,496,064 - Du , et al. July 30, 2 | 2013-07-30 |
| Re-settable and anti-rotational contraction joint with control lines Grant 8,061,430 - Du , et al. November 22, 2 | 2011-11-22 |
| Systems and methods for downhole completions Grant 8,061,429 - Du , et al. November 22, 2 | 2011-11-22 |
| Piezo-based Downhole Flow Meter App 20110100112 - Du; Michael H. | 2011-05-05 |
| Protector For Electrical Submersible Pumps App 20110014071 - Du; Michael H. ; et al. | 2011-01-20 |
| Contraction joint system Grant 7,806,190 - Du October 5, 2 | 2010-10-05 |
| Protector for electrical submersible pumps Grant 7,806,670 - Du , et al. October 5, 2 | 2010-10-05 |
| Re-settable And Anti-rotational Contraction Joint With Control Lines App 20100224375 - Du; Michael H. ; et al. | 2010-09-09 |
| Running-tool For Downhole Equipment With A Hydraulic Control System App 20100163249 - Du; Michael H. ; et al. | 2010-07-01 |
| System and method for protecting a submersible motor Grant 7,741,744 - Watson , et al. June 22, 2 | 2010-06-22 |
| Apparatus, pumping system incorporating same, and methods of protecting pump components Grant 7,654,315 - Du , et al. February 2, 2 | 2010-02-02 |
| System for well logging Grant 7,640,979 - Watson , et al. January 5, 2 | 2010-01-05 |
| Tandem motors Grant 7,549,849 - Watson , et al. June 23, 2 | 2009-06-23 |
| Energized Dynamic Seal Used In Oil Well Equipment App 20090152817 - Du; Michael H. | 2009-06-18 |
| System And Method For Engaging Well Equipment In A Wellbore App 20090078429 - Du; Michael H. ; et al. | 2009-03-26 |
| Contraction Joint System App 20090078430 - Du; Michael H. | 2009-03-26 |
| System And Method For Engaging Completions In A Wellbore App 20090056947 - Du; Michael H. ; et al. | 2009-03-05 |
| Submersible pumping system Grant 7,469,748 - Ocalan , et al. December 30, 2 | 2008-12-30 |
| System for Well Logging App 20070295502 - Watson; Arthur I. ; et al. | 2007-12-27 |
| System and Method for Protecting a Submersible Motor App 20070224056 - Watson; Arthur I. ; et al. | 2007-09-27 |
| Protector For Electrical Submersible Pumps App 20070207046 - Du; Michael H. ; et al. | 2007-09-06 |
| Well tool protection system and method Grant 7,231,986 - Read, Jr. , et al. June 19, 2 | 2007-06-19 |
| Protector for electrical submersible pumps Grant 7,217,107 - Du , et al. May 15, 2 | 2007-05-15 |
| Apparatus, Pumping System Incorporating Same, and Methods of Protecting Pump Components App 20070074872 - Du; Michael H. ; et al. | 2007-04-05 |
| Submersible Pumping System App 20060266526 - Ocalan; Murat ; et al. | 2006-11-30 |
| Tandem Motors App 20060222529 - Watson; Arthur I. ; et al. | 2006-10-05 |
| Protector for electrical submersible pumps Grant 6,981,853 - Du , et al. January 3, 2 | 2006-01-03 |
| Protector for Electrical Submersible Pumps App 20050167096 - Du, Michael H. ; et al. | 2005-08-04 |
| Protector for electrical submersible pumps App 20040136849 - Du, Michael H. ; et al. | 2004-07-15 |
| Protector for electrical submersible pumps Grant 6,688,860 - Du , et al. February 10, 2 | 2004-02-10 |
| Protector for electrical submersible pumps App 20020192090 - Du, Michael H. ; et al. | 2002-12-19 |
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