MD

Michael Hui Du

Schlumberger Technology: 27 patents #141 of 7,293Top 2%
Overall (All Time): #136,822 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 25 most recent of 28 patents

Patent #TitleCo-InventorsDate
12163417 Integrated drilling system Rachel Belleville, Dean Homan, Mark Frey, Patrick Fisseler 2024-12-10
11389858 Cold rolling devices and cold rolled rotary shouldered connection threads Rakesh Singh, Ke Ken Li, Fei Song, Stephen Ray Stafford, Anthony Collins +2 more 2022-07-19
10677017 System and methodology for utilizing a flow control valve Yves Loretz 2020-06-09
10662722 Threaded connections and downhole tools incorporating the same Xiaoge Gan, Ke Chen, Venkatesh Karuppiah, Anthony Collins, Ke Ken Li +3 more 2020-05-26
10160033 Cold rolling devices and cold rolled rotary shouldered connection threads Rakesh Singh, Ke Ken Li, Fei Song, Stephen Ray Stafford, Anthony Collins +2 more 2018-12-25
10145496 Rotary shouldered connections and thread design Ke Ken Li, Fei Song, Rakesh Singh, Anthony Collins, Keith Moriarty 2018-12-04
9863215 Shear valve system and methodology Murali Jayaram, Michael Krail, Anthony Veneruso, Ives D. Loretz, Francesco Vaghi 2018-01-09
9528357 Protector for electrical submersible pumps Lawrence C. Lee, Arunkumar Arumugam, Ashley C. Kishino 2016-12-27
8863832 Orientable eccentric downhole assembly Kevin Beveridge 2014-10-21
8807966 Pump motor protector with redundant shaft seal Arthur I. Watson, David Rowatt, Chad Bremner, Arunkumar Arumugam, David Garrett +2 more 2014-08-19
8752635 Downhole wet mate connection David W. Wang, Gary L. Rytlewski, David Verzwyvelt 2014-06-17
8496064 System and method for engaging completions in a wellbore Gary L. Rytlewski, William D. Chapman 2013-07-30
8061429 Systems and methods for downhole completions Gary L. Rytlewski 2011-11-22
8061430 Re-settable and anti-rotational contraction joint with control lines Claus Endruhn, David Verzwyvelt 2011-11-22
7806190 Contraction joint system 2010-10-05
7806670 Protector for electrical submersible pumps Lawrence C. Lee, Arunkumar Arumugam, Ashley C. Kishino 2010-10-05
7741744 System and method for protecting a submersible motor Arthur I. Watson, John David Rowatt 2010-06-22
7654315 Apparatus, pumping system incorporating same, and methods of protecting pump components John David Rowatt, Cheryl R. DuVall, Michael W. Miller 2010-02-02
7640979 System for well logging Arthur I. Watson, Ramez Guindi, Jacques Orban 2010-01-05
7595573 Submersible electric motor terminated for auxiliary tools Arthur I. Watson 2009-09-29
7549849 Tandem motors Arthur I. Watson, Tyson Messick, Diego Narvaez, Patrick M. McCartney 2009-06-23
7469748 Submersible pumping system Murat Ocalan, John F. Benton, Jeffrey Harold Miller, Arukumar Arumugam, Peter Julstrom +5 more 2008-12-30
7404446 Well tool protection system and method Dennis M. Read, Jr. 2008-07-29
7231986 Well tool protection system and method Dennis M. Read, Jr. 2007-06-19
7217107 Protector for electrical submersible pumps Lawrence C. Lee, Arunkumar Arumugam, Ashley C. Kishino 2007-05-15