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Pralay K. Das
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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Integrated collar sensor for measuring health of a downhole tool
Patent number
11,920,457
Issue date
Mar 5, 2024
Halliburton Energy Services, Inc.
Svetozar D. Simeonov
E21 - EARTH DRILLING MINING
Information
Patent Grant
Unitized downhole tool segment
Patent number
11,913,325
Issue date
Feb 27, 2024
Halliburton Energy Services, Inc.
Pralay Kumar Das
E21 - EARTH DRILLING MINING
Information
Patent Grant
Integrated collar sensor for measuring performance characteristics...
Patent number
11,680,478
Issue date
Jun 20, 2023
Halliburton Energy Services, Inc.
Svetozar D. Simeonov
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubular string with load distribution sleeve for tubular string con...
Patent number
11,643,882
Issue date
May 9, 2023
Halliburton Energy Services, Inc.
Brian Breaux
E21 - EARTH DRILLING MINING
Information
Patent Grant
Integrated collar sensor for a downhole tool
Patent number
11,512,583
Issue date
Nov 29, 2022
Halliburton Energy Services, Inc.
Svetozar D. Simeonov
E21 - EARTH DRILLING MINING
Information
Patent Grant
Integrated collar sensor for measuring mechanical impedance of the...
Patent number
11,408,783
Issue date
Aug 9, 2022
Halliburton Energy Services, Inc.
Svetozar D. Simeonov
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole downlinking system employing a differential pressure trans...
Patent number
8,746,366
Issue date
Jun 10, 2014
Schlumberger Technology Corporation
Ruchir S. Patwa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Rotary steerable tool employing a timed connection
Patent number
8,550,186
Issue date
Oct 8, 2013
Smith International, Inc.
Neelesh Deolalikar
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole downlinking system employing a differential pressure trans...
Patent number
8,408,331
Issue date
Apr 2, 2013
Schlumberger Technology Corporation
Ruchir S. Patwa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Slip ring apparatus for a rotary steerable tool
Patent number
8,157,002
Issue date
Apr 17, 2012
Smith International Inc.
Mark J. Clarkson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Integrated, single collar measurement while drilling tool
Patent number
6,839,000
Issue date
Jan 4, 2005
Baker Hughes Incorporated
Pralay K. Das
G01 - MEASURING TESTING
Information
Patent Grant
Replaceable electrical device for a downhole tool and method thereof
Patent number
6,705,406
Issue date
Mar 16, 2004
Baker Hughes Incorporated
Pralay K. Das
E21 - EARTH DRILLING MINING
Information
Patent Grant
Load cells for sensing weight and torque on a drill bit while drill...
Patent number
5,386,724
Issue date
Feb 7, 1995
Schlumberger Technology Corporation
Pralay K. Das
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus and method for measuring differential pressure while dril...
Patent number
4,805,449
Issue date
Feb 21, 1989
Anadrill, Inc.
Pralay K. Das
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and apparatus for controlled directional drilling of boreholes
Patent number
4,739,841
Issue date
Apr 26, 1988
Anadrill Incorporated
Pralay K. Das
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
TUBULAR STRING WITH LOAD DISTRIBUTION SLEEVE FOR TUBULAR STRING CON...
Publication number
20230028612
Publication date
Jan 26, 2023
Halliburton Energy Services, Inc.
Brian Breaux
E21 - EARTH DRILLING MINING
Information
Patent Application
INTEGRATED COLLAR SENSOR FOR MEASURING HEALTH OF A DOWNHOLE TOOL
Publication number
20220049597
Publication date
Feb 17, 2022
Halliburton Energy Services, Inc.
Svetozar D. SIMEONOV
E21 - EARTH DRILLING MINING
Information
Patent Application
INTEGRATED COLLAR SENSOR FOR MEASURING MECHANICAL IMPEDANCE OF THE...
Publication number
20210404319
Publication date
Dec 30, 2021
Halliburton Energy Services, Inc.
Svetozar D. SIMEONOV
E21 - EARTH DRILLING MINING
Information
Patent Application
INTEGRATED COLLAR SENSOR FOR MEASURING PERFORMANCE CHARACTERISTICS...
Publication number
20210404317
Publication date
Dec 30, 2021
Halliburton Energy Services, Inc.
Svetozar D. SIMEONOV
E21 - EARTH DRILLING MINING
Information
Patent Application
INTEGRATED COLLAR SENSOR FOR A DOWNHOLE TOOL
Publication number
20200408078
Publication date
Dec 31, 2020
Halliburton Energy Services, Inc.
Svetozar D. SIMEONOV
G01 - MEASURING TESTING
Information
Patent Application
UNITIZED DOWNHOLE TOOL SEGMENT
Publication number
20200370415
Publication date
Nov 26, 2020
Halliburton Energy Services, Inc.
Pralay Kumar DAS
E21 - EARTH DRILLING MINING
Information
Patent Application
DOWNHOLE DOWNLINKING SYSTEM EMPLOYING A DIFFERENTIAL PRESSURE TRANS...
Publication number
20130220602
Publication date
Aug 29, 2013
SCHLUMBERGER TECHNOLOGY CORPORATION
Ruchir S. Patwa
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotary Steerable Tool Employing a Timed Connection
Publication number
20110168444
Publication date
Jul 14, 2011
Smith International, Inc.
Neelesh Deolalikar
E21 - EARTH DRILLING MINING
Information
Patent Application
Downhole Downlinking System Employing a Differential Pressure Trans...
Publication number
20110168445
Publication date
Jul 14, 2011
Smith International, Inc.
Ruchir S. Patwa
E21 - EARTH DRILLING MINING
Information
Patent Application
SLIP RING APPARATUS FOR A ROTARY STEERABLE TOOL
Publication number
20110017473
Publication date
Jan 27, 2011
Smith International, Inc.
Mark J. Clarkson
E21 - EARTH DRILLING MINING
Information
Patent Application
Replaceable electrical device for drilling tool
Publication number
20030183384
Publication date
Oct 2, 2003
BAKER HUGHES INCORPORATED
Pralay K. Das
E21 - EARTH DRILLING MINING
Information
Patent Application
Integrated, single collar measurement while drilling tool
Publication number
20030080743
Publication date
May 1, 2003
BAKER HUGHES INCORPORATED
Pralay K. Das
G01 - MEASURING TESTING