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Thomas KOITHAN
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Drilling system and method using calibrated pressure losses
Patent number
11,643,891
Issue date
May 9, 2023
Weatherford Technology Holdings, LLC
Jose D. Brana
E21 - EARTH DRILLING MINING
Information
Patent Grant
Automatic compensation for surge and swab during pipe movement in m...
Patent number
11,047,224
Issue date
Jun 29, 2021
Weatherford Technology Holdings, LLC
Sayamik N. Ameen
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tool joint finding apparatus and method
Patent number
10,995,570
Issue date
May 4, 2021
Weatherford Technology Holdings, LLC
Lizabeth J. Ly
E21 - EARTH DRILLING MINING
Information
Patent Grant
Signal operated drilling tools for milling, drilling, and/or fishin...
Patent number
10,145,196
Issue date
Dec 4, 2018
Weatherford Technology Holdings, LLC
Thomas M. Redlinger
E21 - EARTH DRILLING MINING
Information
Patent Grant
Signal operated tools for milling, drilling, and/or fishing operations
Patent number
8,991,489
Issue date
Mar 31, 2015
Weatherford Technology Holdings, LLC
Thomas M. Redlinger
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods and apparatus for applying torque and rotation to connections
Patent number
7,594,540
Issue date
Sep 29, 2009
Weatherford/Lamb, Inc.
Thomas Koithan
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Methods and apparatus for applying torque and rotation to connections
Patent number
7,296,623
Issue date
Nov 20, 2007
Weatherford/Lamb, Inc.
Thomas Koithan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for controlling wellbore equipment
Patent number
7,264,050
Issue date
Sep 4, 2007
Weatherford/Lamb, Inc.
Thomas Koithan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for controlling wellbore equipment
Patent number
6,896,055
Issue date
May 24, 2005
Weatherford/Lamb, Inc.
Thomas Koithan
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
HYDRAULICS MODEL UTILIZATION IN WELL OPERATIONS
Publication number
20250003330
Publication date
Jan 2, 2025
Weatherford Technology Holdings, LLC.
Thomas H. KOITHAN
E21 - EARTH DRILLING MINING
Information
Patent Application
Automatic Compensation for Surge and Swab During Pipe Movement in M...
Publication number
20210062635
Publication date
Mar 4, 2021
Weatherford Technology Holdings, LLC.
Sayamik N. Ameen
E21 - EARTH DRILLING MINING
Information
Patent Application
Drilling System and Method Using Calibrated Pressure Losses
Publication number
20200386066
Publication date
Dec 10, 2020
Weatherford Technology Holdings, LLC.
Jose D. Brana
E21 - EARTH DRILLING MINING
Information
Patent Application
TOOL JOINT FINDING APPARATUS AND METHOD
Publication number
20190119996
Publication date
Apr 25, 2019
Weatherford Technology Holdings, LLC.
Lizabeth J. LY
E21 - EARTH DRILLING MINING
Information
Patent Application
SIGNAL OPERATED DRILLING TOOLS FOR MILLING, DRILLING, AND/OR FISHIN...
Publication number
20150211318
Publication date
Jul 30, 2015
Weatherford Technology Holdings, LLC.
Thomas M. REDLINGER
E21 - EARTH DRILLING MINING
Information
Patent Application
SIGNAL OPERATED TOOLS FOR MILLING, DRILLING, AND/OR FISHING OPERATIONS
Publication number
20090266544
Publication date
Oct 29, 2009
Thomas M. Redlinger
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS AND APPARATUS FOR APPLYING TORQUE AND ROTATION TO CONNECTIONS
Publication number
20080047749
Publication date
Feb 28, 2008
Thomas Koithan
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
System for communicating information between a rig location and a c...
Publication number
20050161260
Publication date
Jul 28, 2005
Thomas Koithan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for controlling wellbore equipment
Publication number
20050096846
Publication date
May 5, 2005
Weatherford/Lamb, Inc.
Thomas Koithan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for controlling wellbore equipment
Publication number
20040154832
Publication date
Aug 12, 2004
Thomas Koithan
E21 - EARTH DRILLING MINING
Information
Patent Application
Methods and apparatus for applying torque and rotation to connections
Publication number
20040144547
Publication date
Jul 29, 2004
Thomas Koithan
E21 - EARTH DRILLING MINING