DT

Darryl E. Trcka

BH Baker Hughes Holdings: 12 patents #242 of 3,522Top 7%
Saudi Arabian Oil: 2 patents #1,379 of 4,275Top 35%
WI Weatherford International: 2 patents #3 of 15Top 20%
WH Weatherford Technology Holdings: 2 patents #250 of 753Top 35%
WI Western Atlas International: 2 patents #77 of 314Top 25%
📍 Fort Worth, TX: #100 of 2,247 inventorsTop 5%
🗺 Texas: #7,815 of 125,132 inventorsTop 7%
Overall (All Time): #255,186 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
10215880 Pulsed neutron determination of gravel pack density Steve Riley 2019-02-26
9890632 Systems, computer medium and computer-implemented methods for logging using a logging tool with adjustable detectors Shouxiang Mark Ma, Ali R. Belowi 2018-02-13
9863895 Systems and methods for monitoring casing cement integrity Shouxiang Mark Ma, Robert D. Wilson, Jr. 2018-01-09
9012836 Neutron logging tool with multiple detectors Paul James Wilson, Richard R. Pemper 2015-04-21
7566869 Measurement of water-oil saturation using pulsed neutron instrumentation Stephen Riley 2009-07-28
7565833 Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis Michael E. Gillen, Ole Engels, W. Allen Gilchrist, Thomas Kruspe, Songhua Chen 2009-07-28
7566867 Apparatus and method for detecting gamma ray radiation Stephen Riley 2009-07-28
7554081 Method and apparatus for determining silicon content of the earth formations in cased well bores Stephen Riley, David M. Chace 2009-06-30
7372018 Determination of gas pressure and saturation simultaneously Pingjun Guo, Steve Riley, Joseph Gregory Barolak, David M. Chace 2008-05-13
7365308 Measurement of formation gas saturation in cased wellbores using pulsed neutron instrumentation Steve Riley, Pingjun Guo 2008-04-29
7361887 Measurement of formation gas pressure in cased wellbores using pulsed neutron instrumentation Steve Riley, Pingjun Guo 2008-04-22
7301338 Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis Mike Gillen, Ole Engels, W. Allen Gilchrist, Thomas Kruspe, Songhua Chen 2007-11-27
7253402 Apparatus and method for determining thermal neutron capture cross section of a subsurface formation from a borehole using multiple detectors Allen Gilchrist 2007-08-07
7227129 Flowshot technique Stephen Riley, Benoit J. Guivarch, David M. Chace 2007-06-05
7186971 Flowshot technique Stephen Riley, Benoit J. Guivarch, David M. Chace 2007-03-06
7117733 Dynamic logging speed Ole Engels, W. Allen Gilchrist 2006-10-10
5949069 Method and apparatus for measuring volumetric water flow rates in highly inclined wellbores David M. Chace, Rene Mayer 1999-09-07
5404752 Method for measuring the velocity of water flow through nested conduits David M. Chace 1995-04-11