William Johnston

Person

Blacksburg, VA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Grating position dithering for improved distributed acoustic sensin...
- Patent number 12,168,928
- Issue date Dec 17, 2024
- Baker Hughes Oilfield Operations LLC
- William Johnston
- G01 - MEASURING TESTING
Information Patent Grant
Drift correction in a fiber optic distributed acoustic sensing system
- Patent number 11,796,382
- Issue date Oct 24, 2023
- Baker Hughes Oilfield Operations LLC
- William Albert Johnston
- E21 - EARTH DRILLING MINING
Information Patent Grant
Quadrature detection for optical MEMS pressure gauge
- Patent number 11,125,636
- Issue date Sep 21, 2021
- Baker Hughes, a GE company, LLC
- William Albert Johnston
- G01 - MEASURING TESTING
Information Patent Grant
Time division multiplexing of distributed downhole sensing systems
- Patent number 10,746,016
- Issue date Aug 18, 2020
- Baker Hughes, a GE company, LLC
- Alexander Michael Barry
- G01 - MEASURING TESTING
Information Patent Grant
DTS performance improvement through variable mode path length avera...
- Patent number 10,690,552
- Issue date Jun 23, 2020
- Baker Hughes, a GE company, LLC
- Ian Mitchell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Dispersion-shifted optical fibers for downhole sensing
- Patent number 10,677,050
- Issue date Jun 9, 2020
- Baker Hughes, a GE company, LLC
- William Albert Johnston
- G01 - MEASURING TESTING
Information Patent Grant
Distributed parameter measurements using multiple optical sources
- Patent number 10,545,036
- Issue date Jan 28, 2020
- Baker Hughes, a GE company, LLC
- William Albert Johnston
- E21 - EARTH DRILLING MINING
Information Patent Grant
Measurement of temperature using combination of rayleigh and raman...
- Patent number 10,494,914
- Issue date Dec 3, 2019
- Baker Hughes, a GE company, LLC
- William Albert Johnston
- G01 - MEASURING TESTING
Information Patent Grant
Optical fiber distributed sensors with improved dynamic range
- Patent number 10,415,375
- Issue date Sep 17, 2019
- Baker Hughes, a GE company, LLC
- William Johnston
- E21 - EARTH DRILLING MINING
Information Patent Grant
Temperature sensing using distributed acoustic sensing
- Patent number 10,208,586
- Issue date Feb 19, 2019
- Baker Hughes, a GE company, LLC
- William Johnston
- E21 - EARTH DRILLING MINING
Information Patent Grant
Distributed temperature sensor enhancement by stimulated Raman supp...
- Patent number 10,161,811
- Issue date Dec 25, 2018
- Baker-Hughes
- Ian Mitchell
- G01 - MEASURING TESTING
Information Patent Grant
Attenuation correction for distrbuted temperature sensors using ant...
- Patent number 9,989,425
- Issue date Jun 5, 2018
- Baker Hughes, a GE company, LLC
- Ian Mitchell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Optical fiber distributed sensors with improved dynamic range
- Patent number 9,982,531
- Issue date May 29, 2018
- Baker Hughes, a GE company, LLC
- William Johnston
- G02 - OPTICS
Information Patent Grant
Filter and method and distributed temperature sensor system
- Patent number 9,797,783
- Issue date Oct 24, 2017
- Baker Hughes Incorporated
- William Albert Johnston
- G02 - OPTICS
Information Patent Grant
Monitoring fluid flow in a downhole assembly
- Patent number 9,670,759
- Issue date Jun 6, 2017
- Baker Hughes Incorporated
- Erik N. Lee
- E21 - EARTH DRILLING MINING
Information Patent Grant
Distributed acoustic sensing using low pulse repetition rates
- Patent number 9,634,766
- Issue date Apr 25, 2017
- Baker Hughes Incorporated
- William Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrayed wave division multiplex to extend range of IOFDR fiber brag...
- Patent number 9,404,831
- Issue date Aug 2, 2016
- Baker Hughes Incorporated
- Alexander M. Barry
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
GRATING POSITION DITHERING FOR IMPROVED DISTRIBUTED ACOUSTIC SENSIN...
- Publication number 20230141615
- Publication date May 11, 2023
- Baker Hughes Oilfield Operations LLC
- William Johnston
- E21 - EARTH DRILLING MINING
Information Patent Application
DRIFT CORRECTION IN A FIBER OPTIC DISTRIBUTED ACOUSTIC SENSING SYSTEM
- Publication number 20210156734
- Publication date May 27, 2021
- Baker Hughes Oilfield Operations LLC
- William Albert Johnston
- E21 - EARTH DRILLING MINING
Information Patent Application
TIME DIVISION MULTIPLEXING OF DISTRIBUTED DOWNHOLE SENSING SYSTEMS
- Publication number 20200063550
- Publication date Feb 27, 2020
- BAKER HUGHES, A GE COMPANY, LLC
- Alexander Michael Barry
- G01 - MEASURING TESTING
Information Patent Application
QUADRATURE DETECTION FOR OPTICAL MEMS PRESSURE GAUGE
- Publication number 20190376861
- Publication date Dec 12, 2019
- BAKER HUGHES, A GE COMPANY, LLC
- William Albert Johnston
- G01 - MEASURING TESTING
Information Patent Application
DTS PERFORMANCE IMPROVEMENT THROUGH VARIABLE MODE PATH LENGTH AVERA...
- Publication number 20190170593
- Publication date Jun 6, 2019
- BAKER HUGHES, A GE COMPANY, LLC
- Ian Mitchell
- E21 - EARTH DRILLING MINING
Information Patent Application
DISPERSION-SHIFTED OPTICAL FIBERS FOR DOWNHOLE SENSING
- Publication number 20180334900
- Publication date Nov 22, 2018
- BAKER HUGHES INCORPORATED
- William Albert Johnston
- G02 - OPTICS
Information Patent Application
SUBSEA PUMP SYSTEM
- Publication number 20180283163
- Publication date Oct 4, 2018
- AKER SOLUTIONS INC.
- ROBIN SLATER
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL FIBER DISTRIBUTED SENSORS WITH IMPROVED DYNAMIC RANGE
- Publication number 20180252098
- Publication date Sep 6, 2018
- BAKER HUGHES, A GE COMPANY, LLC
- William Johnston
- G01 - MEASURING TESTING
Information Patent Application
MEASUREMENT OF TEMPERATURE USING COMBINATION OF RAYLEIGH AND RAMAN...
- Publication number 20180223647
- Publication date Aug 9, 2018
- BAKER HUGHES INCORPORATED
- William Albert Johnston
- E21 - EARTH DRILLING MINING
Information Patent Application
DISTRIBUTED PARAMETER MEASUREMENTS USING MULTIPLE OPTICAL SOURCES
- Publication number 20180143041
- Publication date May 24, 2018
- BAKER HUGHES, A GE COMPANY, LLC
- William Albert Johnston
- G01 - MEASURING TESTING
Information Patent Application
FILTER AND METHOD AND DISTRIBUTED TEMPERATURE SENSOR SYSTEM
- Publication number 20160370235
- Publication date Dec 22, 2016
- BAKER HUGHES INCORPORATED
- William Albert Johnston
- G02 - OPTICS
Information Patent Application
ARRAYED WAVE DIVISION MULTIPLEX TO EXTEND RANGE OF IOFDR FIBER BRAG...
- Publication number 20160116369
- Publication date Apr 28, 2016
- BAKER HUGHES INCORPORATED
- Alexander M. Barry
- G02 - OPTICS
Information Patent Application
DISTRIBUTED ACOUSTIC SENSING USING LOW PULSE REPETITION RATES
- Publication number 20150318920
- Publication date Nov 5, 2015
- BAKER HUGHES INCORPORATED
- William Johnston
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ATTENUATION CORRECTION FOR DISTRIBUTED TEMPERATURE SENSORS USING AN...
- Publication number 20150300891
- Publication date Oct 22, 2015
- BAKER HUGHES INCORPORATED
- Ian Mitchell
- G01 - MEASURING TESTING
Information Patent Application
DISTRIBUTED TEMPERATURE SENSOR ENHANCEMENT BY STIMULATED RAMAN SUPP...
- Publication number 20150292956
- Publication date Oct 15, 2015
- BAKER HUGHES INCORPORATED
- Ian Mitchell
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL FIBER DISTRIBUTED SENSORS WITH IMPROVED DYNAMIC RANGE
- Publication number 20150233236
- Publication date Aug 20, 2015
- BAKER HUGHES INCORPORATED
- William Johnston
- G02 - OPTICS
Information Patent Application
TEMPERATURE SENSING USING DISTRIBUTED ACOUSTIC SENSING
- Publication number 20150146759
- Publication date May 28, 2015
- BAKER HUGHES INCORPORATED
- William Johnston
- G01 - MEASURING TESTING
Information Patent Application
MONITORING FLUID FLOW IN A DOWNHOLE ASSEMBLY
- Publication number 20150144333
- Publication date May 28, 2015
- BAKER HUGHES INCORPORATED
- Erik N. Lee
- E21 - EARTH DRILLING MINING

William Johnston

Person

Patents Grantslast 30 patents

Grating position dithering for improved distributed acoustic sensin...

Drift correction in a fiber optic distributed acoustic sensing system

Quadrature detection for optical MEMS pressure gauge

Time division multiplexing of distributed downhole sensing systems

DTS performance improvement through variable mode path length avera...

Dispersion-shifted optical fibers for downhole sensing

Distributed parameter measurements using multiple optical sources

Measurement of temperature using combination of rayleigh and raman...

Optical fiber distributed sensors with improved dynamic range

Temperature sensing using distributed acoustic sensing

Distributed temperature sensor enhancement by stimulated Raman supp...

Attenuation correction for distrbuted temperature sensors using ant...

Optical fiber distributed sensors with improved dynamic range

Filter and method and distributed temperature sensor system

Monitoring fluid flow in a downhole assembly

Distributed acoustic sensing using low pulse repetition rates

Arrayed wave division multiplex to extend range of IOFDR fiber brag...

Patents Applicationslast 30 patents

GRATING POSITION DITHERING FOR IMPROVED DISTRIBUTED ACOUSTIC SENSIN...

DRIFT CORRECTION IN A FIBER OPTIC DISTRIBUTED ACOUSTIC SENSING SYSTEM

TIME DIVISION MULTIPLEXING OF DISTRIBUTED DOWNHOLE SENSING SYSTEMS

QUADRATURE DETECTION FOR OPTICAL MEMS PRESSURE GAUGE

DTS PERFORMANCE IMPROVEMENT THROUGH VARIABLE MODE PATH LENGTH AVERA...

DISPERSION-SHIFTED OPTICAL FIBERS FOR DOWNHOLE SENSING

SUBSEA PUMP SYSTEM

OPTICAL FIBER DISTRIBUTED SENSORS WITH IMPROVED DYNAMIC RANGE

MEASUREMENT OF TEMPERATURE USING COMBINATION OF RAYLEIGH AND RAMAN...

DISTRIBUTED PARAMETER MEASUREMENTS USING MULTIPLE OPTICAL SOURCES

FILTER AND METHOD AND DISTRIBUTED TEMPERATURE SENSOR SYSTEM

ARRAYED WAVE DIVISION MULTIPLEX TO EXTEND RANGE OF IOFDR FIBER BRAG...

DISTRIBUTED ACOUSTIC SENSING USING LOW PULSE REPETITION RATES

ATTENUATION CORRECTION FOR DISTRIBUTED TEMPERATURE SENSORS USING AN...

DISTRIBUTED TEMPERATURE SENSOR ENHANCEMENT BY STIMULATED RAMAN SUPP...

OPTICAL FIBER DISTRIBUTED SENSORS WITH IMPROVED DYNAMIC RANGE

TEMPERATURE SENSING USING DISTRIBUTED ACOUSTIC SENSING

MONITORING FLUID FLOW IN A DOWNHOLE ASSEMBLY