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Theodorus Tjhang
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Kanagawa-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Downhole imaging systems and methods
Patent number
9,874,082
Issue date
Jan 23, 2018
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Systems and methods for detecting movement of drilling/logging equi...
Patent number
9,759,058
Issue date
Sep 12, 2017
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill bit assembly imaging systems and methods
Patent number
9,719,342
Issue date
Aug 1, 2017
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and systems for downhole fluid analysis
Patent number
9,670,775
Issue date
Jun 6, 2017
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Image-based measurement of a fluid
Patent number
9,611,735
Issue date
Apr 4, 2017
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole imaging systems and methods
Patent number
9,581,011
Issue date
Feb 28, 2017
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Imaging methods and systems for controlling equipment in remote env...
Patent number
9,584,711
Issue date
Feb 28, 2017
Schlumberger Technology Corporation
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
High-speed image monitoring of baseplate movement in a vibrator
Patent number
9,217,797
Issue date
Dec 22, 2015
Schlumberger Technology Corporation
John Richard Tulett
G01 - MEASURING TESTING
Information
Patent Grant
Imaging systems and image fiber bundles for downhole measurement
Patent number
8,916,816
Issue date
Dec 23, 2014
Schlumberger Technology Corporation
Theodorus Tjhang
G01 - MEASURING TESTING
Information
Patent Grant
Imaging methods and systems for downhole fluid analysis
Patent number
8,483,445
Issue date
Jul 9, 2013
Schlumberger Technology Corporation
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and systems for borehole telemetry
Patent number
8,362,916
Issue date
Jan 29, 2013
Schlumberger Technology Corporation
Theodorus Tjhang
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
CONTROL SYSTEM FOR SUBSEA SUBSURFACE FLUID OPERATIONS
Publication number
20180252094
Publication date
Sep 6, 2018
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Downhole Imaging Systems and Methods
Publication number
20150167447
Publication date
Jun 18, 2015
THE UNIVERSITY OF TOKYO
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Image-Based Measurement of A Fluid
Publication number
20150138557
Publication date
May 21, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
G01 - MEASURING TESTING
Information
Patent Application
Imaging-Based Measurement Device
Publication number
20150138337
Publication date
May 21, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Methods and Systems for Downhole Fluid Analysis
Publication number
20150114627
Publication date
Apr 30, 2015
THE UNIVERSITY OF TOKYO
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Application
Drill Bit Assembly Imaging Systems and Methods
Publication number
20150085101
Publication date
Mar 26, 2015
THE UNIVERSITY OF TOKYO
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Cleaning Mechanisms for Optical Elements
Publication number
20150075557
Publication date
Mar 19, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
B08 - CLEANING
Information
Patent Application
Systems and Methods for Detecting Movement of Drilling/Logging Equi...
Publication number
20150075866
Publication date
Mar 19, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Application
Downhole Imaging Systems and Methods
Publication number
20150007983
Publication date
Jan 8, 2015
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Application
High-Speed Image Monitoring of Baseplate Movement in A Vibrator
Publication number
20140305732
Publication date
Oct 16, 2014
SCHLUMBERGER TECHNOLOGY CORPORATION
John Richard Tulett
G01 - MEASURING TESTING
Information
Patent Application
Multi-Scheme Downhole Tool Bus System and Methods
Publication number
20140218206
Publication date
Aug 7, 2014
SCHLUMBERGER TECHNOLOGY CORPORATION
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Imaging Systems and Image Fiber Bundles for Downhole Measurement
Publication number
20140103203
Publication date
Apr 17, 2014
THE UNIVERSITY OF TOKYO
Theodorus Tjhang
G01 - MEASURING TESTING
Information
Patent Application
Imaging Methods and Systems for Controlling Equipment in Remote Env...
Publication number
20130265409
Publication date
Oct 10, 2013
THE UNIVERSITY OF TOKYO
Theodorus Tjhang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMAGING METHODS AND SYSTEMS FOR DOWNHOLE FLUID ANALYSIS
Publication number
20120076364
Publication date
Mar 29, 2012
Theodorus Tjhang
E21 - EARTH DRILLING MINING
Information
Patent Application
Methods and systems for borehole telemetry
Publication number
20100194586
Publication date
Aug 5, 2010
SCHLUMBERGER TECHNOLOGY CORPORATION
THEODORUS TJHANG
G01 - MEASURING TESTING