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James A. Grau
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Marshfield, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Porosity measurements from nuclear spectroscopy
Patent number
12,061,308
Issue date
Aug 13, 2024
Schlumberger Technology Corporation
James Grau
G01 - MEASURING TESTING
Information
Patent Grant
Measuring spectral contributions of elements in regions in and abou...
Patent number
12,025,767
Issue date
Jul 2, 2024
Schlumberger Technology Corporation
James Anthony Grau
E21 - EARTH DRILLING MINING
Information
Patent Grant
Combining inelastic and capture gamma ray spectroscopy for determin...
Patent number
10,429,540
Issue date
Oct 1, 2019
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Method for measuring formation water salinity from within a borehole
Patent number
10,247,849
Issue date
Apr 2, 2019
Schlumberger Technology Corporation
Harold Pfutzner
G01 - MEASURING TESTING
Information
Patent Grant
Gamma-ray detectors for downhole applications
Patent number
10,145,979
Issue date
Dec 4, 2018
Schlumberger Technology Corporation
Bradley Albert Roscoe
G01 - MEASURING TESTING
Information
Patent Grant
Absolute elemental concentrations from nuclear spectroscopy
Patent number
10,061,055
Issue date
Aug 28, 2018
Schlumberger Technology Corporation
Jim A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Hydrocarbon saturation from total organic carbon logs derived from...
Patent number
9,851,468
Issue date
Dec 26, 2017
Schlumberger Technology Corporation
Michael M. Herron
E21 - EARTH DRILLING MINING
Information
Patent Grant
Neutron-induced gamma-ray spectroscopy that accounts for environmen...
Patent number
9,835,759
Issue date
Dec 5, 2017
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Method for filtering for interpretation of neutron induced gamma ra...
Patent number
9,835,758
Issue date
Dec 5, 2017
Schlumberger Technology Corporation
Tong Zhou
G01 - MEASURING TESTING
Information
Patent Grant
Gamma-ray detectors for downhole applications
Patent number
9,599,729
Issue date
Mar 21, 2017
Schlumberger Technology Corporation
Bradley Albert Roscoe
G01 - MEASURING TESTING
Information
Patent Grant
Geological constituent estimation using calculated spectra relation...
Patent number
9,575,208
Issue date
Feb 21, 2017
Schlumberger Technology Corporation
James Grau
G01 - MEASURING TESTING
Information
Patent Grant
Borehole tool calibration method
Patent number
9,568,639
Issue date
Feb 14, 2017
Schlumberger Technology Corporation
James Grau
G01 - MEASURING TESTING
Information
Patent Grant
Environmental corrections in nuclear spectroscopy using variable el...
Patent number
9,541,668
Issue date
Jan 10, 2017
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Composition-matched inelastic or capture spectroscopy tool
Patent number
9,417,355
Issue date
Aug 16, 2016
Schlumberger Technology Corporation
Christian Stoller
G01 - MEASURING TESTING
Information
Patent Grant
Mining systems and methods
Patent number
9,234,980
Issue date
Jan 12, 2016
Schlumberger Technology Corporation
Gilles Mathieu
G01 - MEASURING TESTING
Information
Patent Grant
Method of determining an element value
Patent number
9,091,774
Issue date
Jul 28, 2015
Schlumberger Technology Corporation
Jeffrey Miles
G01 - MEASURING TESTING
Information
Patent Grant
Nuclear spectroscopy corrections using multiple standards and spati...
Patent number
8,963,073
Issue date
Feb 24, 2015
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Correcting gamma-ray energy spectra for pileup degradation
Patent number
8,927,920
Issue date
Jan 6, 2015
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Gamma-ray detectors for downhole applications
Patent number
8,901,483
Issue date
Dec 2, 2014
Schlumberger Technology Corporation
Bradley Albert Roscoe
G01 - MEASURING TESTING
Information
Patent Grant
Intrinsic radioactivity in a scintillator as count rate reference
Patent number
8,546,749
Issue date
Oct 1, 2013
Schlumberger Technology Corporation
Markus Berheide
G01 - MEASURING TESTING
Information
Patent Grant
Scintillator based radiation detection
Patent number
8,536,517
Issue date
Sep 17, 2013
Schlumberger Technology Corporation
Markus Berheide
G01 - MEASURING TESTING
Information
Patent Grant
Gamma-ray detectors for downhole applications
Patent number
8,431,885
Issue date
Apr 30, 2013
Schlumberger Technology Corporation
Bradley A. Roscoe
G01 - MEASURING TESTING
Information
Patent Grant
Methods and apparatus using both nuclear capture and inelastic spec...
Patent number
7,366,615
Issue date
Apr 29, 2008
Schlumber Technology Corporation
Susan Herron
G01 - MEASURING TESTING
Information
Patent Grant
Downhole gamma-ray detection
Patent number
7,081,616
Issue date
Jul 25, 2006
Schlumberger Technology Corporation
Jim Grau
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for gamma ray logging of underground formations
Patent number
5,521,378
Issue date
May 28, 1996
Schlumberger Technology Corporation
Bradley A. Roscoe
G01 - MEASURING TESTING
Information
Patent Grant
Methods and apparatus for calibration of BGO scintillator gamma ray...
Patent number
5,171,986
Issue date
Dec 15, 1992
Schlumberger Technology Corporation
William A. Loomis
G01 - MEASURING TESTING
Information
Patent Grant
Broad energy spectra neutron source for logging and method
Patent number
5,097,123
Issue date
Mar 17, 1992
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Information
Patent Grant
Geochemical logging apparatus and method for determining concentrat...
Patent number
5,021,653
Issue date
Jun 4, 1991
Schlumberger Technology Corporation
Brad Roscoe
G01 - MEASURING TESTING
Information
Patent Grant
Logging apparatus and method for determining absolute elemental con...
Patent number
4,810,876
Issue date
Mar 7, 1989
Schlumberger Technology Corporation
Peter D. Wraight
G01 - MEASURING TESTING
Information
Patent Grant
Methods and apparatus for borehole-corrected spectral analysis of e...
Patent number
4,661,701
Issue date
Apr 28, 1987
Schlumberger Technology Corporation
James A. Grau
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
POROSITY MEASUREMENTS FROM NUCLEAR SPECTROSCOPY
Publication number
20240077637
Publication date
Mar 7, 2024
SCHLUMBERGER TECHNOLOGY CORPORATION
James Grau
G01 - MEASURING TESTING
Information
Patent Application
MEASURING SPECTRAL CONTRIBUTIONS OF ELEMENTS IN REGIONS IN AND ABOU...
Publication number
20210231827
Publication date
Jul 29, 2021
SCHLUMBERGER TECHNOLOGY CORPORATION
James Anthony GRAU
G01 - MEASURING TESTING
Information
Patent Application
Gamma-Ray Detectors For Downhole Applications
Publication number
20170184759
Publication date
Jun 29, 2017
SCHLUMBERGER TECHNOLOGY CORPORATION
Bradley Albert Roscoe
G01 - MEASURING TESTING
Information
Patent Application
NEUTRON-INDUCED GAMMA-RAY SPECTROSCOPY THAT ACCOUNTS FOR ENVIRONMEN...
Publication number
20170153354
Publication date
Jun 1, 2017
SCHLUMBERGER TECHNOLOGY CORPORATION
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Method for Filtering for Interpretation of Neutron Induced Gamma Ra...
Publication number
20170115428
Publication date
Apr 27, 2017
SCHLUMBERGER TECHNOLOGY CORPORATION
Tong Zhou
G01 - MEASURING TESTING
Information
Patent Application
ABSOLUTE ELEMENTAL CONCENTRATIONS FROM NUCLEAR SPECTROSCOPY
Publication number
20160195636
Publication date
Jul 7, 2016
SCHLUMBERGER TECHNOLOGY CORPORATION
Jim A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Correction to Determined Formation Sulfur to Account for Sulfur in...
Publication number
20160047938
Publication date
Feb 18, 2016
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Geological Constituent Estimation Using Calculated Spectra Relation...
Publication number
20150331141
Publication date
Nov 19, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
James Grau
G01 - MEASURING TESTING
Information
Patent Application
Borehole Tool Calibration Method
Publication number
20150331144
Publication date
Nov 19, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
James Grau
G01 - MEASURING TESTING
Information
Patent Application
Alpha Processing to Improve Accuracy and Precision of Elemental Con...
Publication number
20150285943
Publication date
Oct 8, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Christian Stoller
G01 - MEASURING TESTING
Information
Patent Application
Hydrocarbon Saturation From Total Organic Carbon Logs Derived From...
Publication number
20150285944
Publication date
Oct 8, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Michael M. Herron
G01 - MEASURING TESTING
Information
Patent Application
Composition-Matched Inelastic or Capture Spectroscopy Tool
Publication number
20150185358
Publication date
Jul 2, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Christian Stoller
G01 - MEASURING TESTING
Information
Patent Application
Gamma-Ray Detectors For Downhole Applications
Publication number
20150076337
Publication date
Mar 19, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Bradley Albert Roscoe
G01 - MEASURING TESTING
Information
Patent Application
Method For Measuring Formation Water Salinity From Within A Borehole
Publication number
20140343857
Publication date
Nov 20, 2014
SAUDI ARAMCO OIL COMPANY
Harold Pfutzner
G01 - MEASURING TESTING
Information
Patent Application
MINING SYSTEMS AND METHODS
Publication number
20140291499
Publication date
Oct 2, 2014
SCHLUMBERGER TECHNOLOGY CORPORATION
Gilles Mathieu
G01 - MEASURING TESTING
Information
Patent Application
Nuclear Spectroscopy Corrections Using Multiple Standards and Spati...
Publication number
20140231640
Publication date
Aug 21, 2014
SCHLUMBERGER TECHNOLOGY CORPORATION
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Correcting Gamma-Ray Energy Spectra for Pileup Degradation
Publication number
20140217273
Publication date
Aug 7, 2014
SCHLUMBERGER TECHNOLOGY CORPORATION
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Environmental Corrections in Nuclear Spectroscopy Using Variable El...
Publication number
20140138529
Publication date
May 22, 2014
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Environmental Corrections in Nuclear Spectroscopy Using Variable Sh...
Publication number
20140138530
Publication date
May 22, 2014
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
Method Of Determining An Element Value
Publication number
20140110575
Publication date
Apr 24, 2014
SCHLUMBERGER TECHNOLOGY CORPORATION
Jeffrey Miles
G01 - MEASURING TESTING
Information
Patent Application
Gamma-Ray Detectors For Downhole Applications
Publication number
20130214145
Publication date
Aug 22, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
Bradley Albert Roscoe
G01 - MEASURING TESTING
Information
Patent Application
COMBINING INELASTIC AND CAPTURE GAMMA RAY SPECTROSCOPY FOR DETERMIN...
Publication number
20130158876
Publication date
Jun 20, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
James A. Grau
G01 - MEASURING TESTING
Information
Patent Application
GAMMA-RAY DETECTORS FOR DOWNHOLE APPLICATIONS
Publication number
20110284731
Publication date
Nov 24, 2011
SCHLUMBERGER TECHNOLOGY CORPORATION
Bradley A. Roscoe
G01 - MEASURING TESTING
Information
Patent Application
INTRINSIC RADIOACTIVITY IN A SCINTILLATOR AS COUNT RATE REFERENCE
Publication number
20100301198
Publication date
Dec 2, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Markus Berheide
G01 - MEASURING TESTING
Information
Patent Application
SCINTILLATOR BASED RADIATION DETECTION
Publication number
20100243877
Publication date
Sep 30, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
Markus Berheide
G01 - MEASURING TESTING
Information
Patent Application
Methods and apparatus using both nuclear capture and inelastic spec...
Publication number
20080023629
Publication date
Jan 31, 2008
SCHLUMBERGER TECHNOLOGY CORPORATION
Susan Herron
G01 - MEASURING TESTING
Information
Patent Application
Downhole gamma-ray detection
Publication number
20050127282
Publication date
Jun 16, 2005
Jim Grau
G01 - MEASURING TESTING