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Thomas D. Helbert
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Magnolia, TX, US
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Patents Grants
last 30 patents
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Patent Grant
Retention system for bottom hole assembly and whipstock
Patent number
10,704,328
Issue date
Jul 7, 2020
Weatherford Technology Holdings, LLC
Joshua Matthew Korf
E21 - EARTH DRILLING MINING
Information
Patent Grant
Downhole casing pulling tool
Patent number
10,309,179
Issue date
Jun 4, 2019
Weatherford Technology Holdings, LLC
Mark C. Glaser
E21 - EARTH DRILLING MINING
Information
Patent Grant
Methods of making multiple casing cuts
Patent number
7,762,330
Issue date
Jul 27, 2010
Smith International, Inc.
James E. Saylor, III
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
RETENTION SYSTEM FOR BOTTOM HOLE ASSEMBLY AND WHIPSTOCK
Publication number
20190106940
Publication date
Apr 11, 2019
Weatherford Technology Holdings, LLC.
Joshua Matthew KORF
E21 - EARTH DRILLING MINING
Information
Patent Application
Downhole Casing Pulling Tool
Publication number
20160076327
Publication date
Mar 17, 2016
Weatherford Technology Holdings, LLC.
Mark C. Glaser
E21 - EARTH DRILLING MINING
Information
Patent Application
METHODS OF MAKING MULTIPLE CASING CUTS
Publication number
20100006290
Publication date
Jan 14, 2010
Smith International, Inc.
James E. Saylor, III
E21 - EARTH DRILLING MINING