NL

Nolan C. Lerche

Schlumberger Technology: 19 patents #250 of 7,293Top 4%
HT Hunting Titan: 6 patents #17 of 53Top 35%
ST Schlumberger Technical: 1 patents #2 of 8Top 25%
ST Schulumberger Technology: 1 patents #1 of 16Top 7%
Overall (All Time): #124,553 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 25 most recent of 30 patents

Patent #TitleCo-InventorsDate
10557693 High voltage explosive assembly for downhole detonations James E. Brooks 2020-02-11
9851191 High voltage explosive assembly for downhole detonations James E. Brooks 2017-12-26
9464508 Interactive and/or secure activation of a tool James E. Brooks, Simon L. Farrant, Edward H. Rogers 2016-10-11
9394767 Transient control of wellbore pressure James E. Brooks 2016-07-19
8931389 High voltage explosive assembly for downhole detonations James E. Brooks 2015-01-13
8884778 Apparatus and methods for controlling and communicating with downhole devices James E. Brooks 2014-11-11
8689868 Tractor communication/control and select fire perforating switch simulations James E. Brooks, Jesper Oluf Larsen, Brian Thomsen, Kasper Juul Larsen 2014-04-08
8576090 Apparatus and methods for controlling and communicating with downwhole devices James E. Brooks 2013-11-05
8230788 Method of fabrication and use of integrated detonators James E. Brooks, Anthony Veneruso 2012-07-31
8091477 Integrated detonators for use with explosive devices James E. Brooks, Anthony Veneruso 2012-01-10
7549373 Integrated activating device for explosives James E. Brooks, Frank A. Duva 2009-06-23
7520323 Interactive and/or secure activation of a tool James E. Brooks, Simon L. Farrant, Edward H. Rogers 2009-04-21
7505244 Micro-switches for downhole use James E. Brooks, Charles Cameron Abnet, Clarence Chui, Stuart B. Brown 2009-03-17
7383882 Interactive and/or secure activation of a tool James E. Brooks, Simon L. Farrant, Edward H. Rogers 2008-06-10
7347278 Secure activation of a downhole device James E. Brooks, Choon Fei Wong 2008-03-25
7336474 Microelectromechanical devices James E. Brooks, Anthony Veneruso 2008-02-26
7116542 Micro-switches for downhole use James E. Brooks, Charles Cameron Abnet, Clarence Chui, Stuart B. Brown 2006-10-03
7007756 Providing electrical isolation for a downhole device James E. Brooks, Choon Fei Wong 2006-03-07
6938689 Communicating with a tool Simon L. Farrant, James E. Brooks, Edward H. Rogers, Michael L. Timmons, Anthony F. Venersuo 2005-09-06
6752083 Detonators for use with explosive devices James E. Brooks, Kenneth E. Rozek 2004-06-22
6604584 Downhole activation system David Merlau 2003-08-12
6386108 Initiation of explosive devices James E. Brooks 2002-05-14
6385031 Switches for use in tools James E. Brooks 2002-05-07
6283227 Downhole activation system that assigns and retrieves identifiers David Merlau 2001-09-04
6148263 Activation of well tools James E. Brooks, Gerald W. Robertson, Michael L. Timmons 2000-11-14