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Michael Hui Du
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Manvel, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Integrated drilling system
Patent number
12,163,417
Issue date
Dec 10, 2024
Schlumberger Tehcnology Corporation
Rachel Belleville
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cold rolling devices and cold rolled rotary shouldered connection t...
Patent number
11,389,858
Issue date
Jul 19, 2022
Schlumberger Technology Corporation
Rakesh Singh
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
System and methodology for utilizing a flow control valve
Patent number
10,677,017
Issue date
Jun 9, 2020
Schlumberger Technology Corporation
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Threaded connections and downhole tools incorporating the same
Patent number
10,662,722
Issue date
May 26, 2020
Schlumberger Technology Corporation
Xiaoge Gan
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Cold rolling devices and cold rolled rotary shouldered connection t...
Patent number
10,160,033
Issue date
Dec 25, 2018
Schlumberger Technology Corporation
Rakesh Singh
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Rotary shouldered connections and thread design
Patent number
10,145,496
Issue date
Dec 4, 2018
Schlumberger Technology Corporation
Ke Ken Li
E21 - EARTH DRILLING MINING
Information
Patent Grant
Shear valve system and methodology
Patent number
9,863,215
Issue date
Jan 9, 2018
Schlumberger Technology Corporation
Murali Jayaram
E21 - EARTH DRILLING MINING
Information
Patent Grant
Protector for electrical submersible pumps
Patent number
9,528,357
Issue date
Dec 27, 2016
Schlumberger Technology Corporation
Michael H. Du
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Orientable eccentric downhole assembly
Patent number
8,863,832
Issue date
Oct 21, 2014
Schlumberger Technology Corporation
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pump motor protector with redundant shaft seal
Patent number
8,807,966
Issue date
Aug 19, 2014
Schlumberger Technology Corporation
Michael Hui Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Downhole wet mate connection
Patent number
8,752,635
Issue date
Jun 17, 2014
Schlumberger Technology Corporation
David Wei Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
System and method for engaging completions in a wellbore
Patent number
8,496,064
Issue date
Jul 30, 2013
Schlumberger Technology Corporation
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Re-settable and anti-rotational contraction joint with control lines
Patent number
8,061,430
Issue date
Nov 22, 2011
Schlumberger Technology Corporation
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Systems and methods for downhole completions
Patent number
8,061,429
Issue date
Nov 22, 2011
Schlumberger Technology Corporation
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Contraction joint system
Patent number
7,806,190
Issue date
Oct 5, 2010
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Protector for electrical submersible pumps
Patent number
7,806,670
Issue date
Oct 5, 2010
Schlumberger Technology Corporation
Michael H. Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
System and method for protecting a submersible motor
Patent number
7,741,744
Issue date
Jun 22, 2010
Schlumberger Technology Corporation
Arthur I. Watson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Apparatus, pumping system incorporating same, and methods of protec...
Patent number
7,654,315
Issue date
Feb 2, 2010
Schlumberger Technology Corporation
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
System for well logging
Patent number
7,640,979
Issue date
Jan 5, 2010
Schlumberger Technology Corporation
Arthur I. Watson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Submersible electric motor terminated for auxiliary tools
Patent number
7,595,573
Issue date
Sep 29, 2009
Schlumberger Technology Corporation
Arthur I. Watson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Tandem motors
Patent number
7,549,849
Issue date
Jun 23, 2009
Schlumberger Technology Corporation
Arthur I. Watson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Submersible pumping system
Patent number
7,469,748
Issue date
Dec 30, 2008
Schlumberger Technology Corporation
Murat Ocalan
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Well tool protection system and method
Patent number
7,404,446
Issue date
Jul 29, 2008
Schlumberger Technology Corporation
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Well tool protection system and method
Patent number
7,231,986
Issue date
Jun 19, 2007
Schlumberger Technology Corporation
Dennis M. Read, Jr.
E21 - EARTH DRILLING MINING
Information
Patent Grant
Protector for electrical submersible pumps
Patent number
7,217,107
Issue date
May 15, 2007
Schlumberger Technology Corporation
Michael H. Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Motor protector
Patent number
7,182,584
Issue date
Feb 27, 2007
Schlumberger Technology Corporation
Michael Hui Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Protector for electrical submersible pumps
Patent number
6,981,853
Issue date
Jan 3, 2006
Schlumberger Technology Corporation
Michael H. Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Protector for electrical submersible pumps
Patent number
6,688,860
Issue date
Feb 10, 2004
Schlumberger Technology Corporation
Michael H. Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Patents Applications
last 30 patents
Information
Patent Application
INTEGRATED DRILLING SYSTEM
Publication number
20240410269
Publication date
Dec 12, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
Rachel Belleville
E21 - EARTH DRILLING MINING
Information
Patent Application
THREADED CONNECTIONS AND DOWNHOLE TOOLS INCORPORATING THE SAME
Publication number
20190078398
Publication date
Mar 14, 2019
SCHLUMBERGER TECHNOLOGY CORPORATION
Xiaoge Gan
E21 - EARTH DRILLING MINING
Information
Patent Application
COLD ROLLING DEVICES AND COLD ROLLED ROTARY SHOULDERED CONNECTION T...
Publication number
20190060979
Publication date
Feb 28, 2019
SCHLUMBERGER TECHNOLOGY CORPORATION
Rakesh Singh
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SYSTEM AND METHODOLOGY FOR UTILIZING A FLOW CONTROL VALVE
Publication number
20160319635
Publication date
Nov 3, 2016
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Application
Shear Valve System And Methodology
Publication number
20160053578
Publication date
Feb 25, 2016
SCHLUMBERGER TECHNOLOGY CORPORATION
Murali Jayaram
E21 - EARTH DRILLING MINING
Information
Patent Application
Cold Rolling Devices and Colled Rolled Rotary Shouldered Connection...
Publication number
20150367402
Publication date
Dec 24, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Rakesh Singh
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Rotary Shouldered Connections and Thread Design
Publication number
20150362100
Publication date
Dec 17, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Ke Ken Li
E21 - EARTH DRILLING MINING
Information
Patent Application
Pump Motor Protector with Redundant Shaft Seal
Publication number
20140322038
Publication date
Oct 30, 2014
Michael Hui Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
ORIENTABLE ECCENTRIC DOWNHOLE ASSEMBLY
Publication number
20120073835
Publication date
Mar 29, 2012
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Application
DOWNHOLE HYDRAULIC COUPLING ASSEMBLY
Publication number
20110168406
Publication date
Jul 14, 2011
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Application
PIEZO-BASED DOWNHOLE FLOW METER
Publication number
20110100112
Publication date
May 5, 2011
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
PROTECTOR FOR ELECTRICAL SUBMERSIBLE PUMPS
Publication number
20110014071
Publication date
Jan 20, 2011
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
RE-SETTABLE AND ANTI-ROTATIONAL CONTRACTION JOINT WITH CONTROL LINES
Publication number
20100224375
Publication date
Sep 9, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
PUMP MOTOR PROTECTOR WITH REDUNDANT SHAFT SEAL
Publication number
20100202896
Publication date
Aug 12, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
RUNNING-TOOL FOR DOWNHOLE EQUIPMENT WITH A HYDRAULIC CONTROL SYSTEM
Publication number
20100163249
Publication date
Jul 1, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
ENERGIZED DYNAMIC SEAL USED IN OIL WELL EQUIPMENT
Publication number
20090152817
Publication date
Jun 18, 2009
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
CONTRACTION JOINT SYSTEM
Publication number
20090078430
Publication date
Mar 26, 2009
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEM AND METHOD FOR ENGAGING WELL EQUIPMENT IN A WELLBORE
Publication number
20090078429
Publication date
Mar 26, 2009
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
SYSTEM AND METHOD FOR ENGAGING COMPLETIONS IN A WELLBORE
Publication number
20090056947
Publication date
Mar 5, 2009
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
Submersible Electric Motor Terminated for Auxiliary Tools
Publication number
20070296291
Publication date
Dec 27, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Arthur I. Watson
E21 - EARTH DRILLING MINING
Information
Patent Application
System for Well Logging
Publication number
20070295502
Publication date
Dec 27, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Arthur I. Watson
E21 - EARTH DRILLING MINING
Information
Patent Application
System and Method for Protecting a Submersible Motor
Publication number
20070224056
Publication date
Sep 27, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Arthur I. Watson
E21 - EARTH DRILLING MINING
Information
Patent Application
PROTECTOR FOR ELECTRICAL SUBMERSIBLE PUMPS
Publication number
20070207046
Publication date
Sep 6, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
WELL TOOL PROTECTION SYSTEM AND METHOD
Publication number
20070151736
Publication date
Jul 5, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Application
Apparatus, Pumping System Incorporating Same, and Methods of Protec...
Publication number
20070074872
Publication date
Apr 5, 2007
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
Submersible Pumping System
Publication number
20060266526
Publication date
Nov 30, 2006
SCHLUMBERGER TECHNOLOGY CORPORATION
Murat Ocalan
E21 - EARTH DRILLING MINING
Information
Patent Application
Tandem Motors
Publication number
20060222529
Publication date
Oct 5, 2006
SCHLUMBERGER TECHNOLOGY CORPORATION
Arthur I. Watson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Application
Protector for Electrical Submersible Pumps
Publication number
20050167096
Publication date
Aug 4, 2005
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael H. Du
E21 - EARTH DRILLING MINING
Information
Patent Application
Motor Protector
Publication number
20050087343
Publication date
Apr 28, 2005
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
E21 - EARTH DRILLING MINING
Information
Patent Application
WELL TOOL PROTECTION SYSTEM AND METHOD
Publication number
20050056429
Publication date
Mar 17, 2005
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael Hui Du
E21 - EARTH DRILLING MINING