CL

Colin Longfield

Schlumberger Technology: 20 patents #230 of 7,293Top 4%
Overall (All Time): #222,433 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10514104 Indexer controlled directional valve system Edgar Jose Montiel, Abbigail Ullrich, Mark D. Smith, Michael Fuad 2019-12-24
10392900 Actuation control system using pilot control circuit Gary L. Rytlewski, James G. Filas, Edgar Jose Montiel 2019-08-27
10246991 Acoustic detection system Dexter Myles Mootoo 2019-04-02
9535187 Device and method to determine conductivity for high pressure-high temperature service Indranil Roy, Oliver C. Mullins, Richard Evans Lewis, II, Chris Wilkinson, Paul George +1 more 2017-01-03
9316076 High pressure high temperature (HPHT) well tool control system and method Wei-Chi Wang, David Merlau, Brad Bailey, Sebastien Ives 2016-04-19
9194974 Method to predict dense hydrocarbon saturations for high pressure high temperature Indranil Roy, Chris Wilkinson, Partha Ganguly, Richard G. Lewis, Oliver C. Mullins 2015-11-24
9062514 Downhole valve Joseph D. Scranton, Kamil Ifitkhar 2015-06-23
8978757 Remote actuation testing tool for high pressure differential downhole environments Wei-Chi Wang, David Merlau, Sebastian Ives, Brad Bailey, Belinda D. Manning 2015-03-17
8720539 Modular power source for subsurface systems Albert E. Patterson, II, Shardul Sarhad, Patrick Fisseler 2014-05-13
8695717 Inflatable packer assembly William E. Brennan, III, Alexis Arzoumanidis, Allessandro Caccialupi 2014-04-15
8220533 Downhole piezoelectric devices David W. Wang, Gary L. Rytlewski 2012-07-17
7841406 Formation fluid sampling apparatus and methods Alexander F. Zazovsky, Julian Pop, Thomas H. Zimmerman, John Sherwood, Keith A. Burgess 2010-11-30
7654321 Formation fluid sampling apparatus and methods Alexander F. Zazovsky, Julian Pop, Thomas H. Zimmerman, John Sherwood, Keith A. Burgess 2010-02-02
7578342 Inflatable packer assembly William E. Brennan, III, Alexis Arzoumanidis, Alessandro Caccialupi 2009-08-25
7546885 Apparatus and method for obtaining downhole samples 2009-06-16
7392851 Inflatable packer assembly William E. Brennan, III, Alexis Arzoumanidis, Alessandro Caccialupi 2008-07-01
7311142 Apparatus and method for aquiring information while drilling Patrick Fisseler, Tom Palmer, James Mather, Richard Meehan, Jean-Marc Follini +1 more 2007-12-25
7278480 Apparatus and method for sensing downhole parameters Yves Barriol, Douglas W. Grant 2007-10-09
7114562 Apparatus and method for acquiring information while drilling Patrick Fisseler, Tom Palmer, James Mather, Richard Meehan, Jean-Marc Follini +1 more 2006-10-03
6467387 Apparatus and method for propelling a data sensing apparatus into a subsurface formation Frank Espinosa, Reinhart Ciglenec 2002-10-22