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Earl Dietrich
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Fulshear, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Deployment tool and deployment tool assembly
Patent number
11,473,374
Issue date
Oct 18, 2022
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotating control device with flexible sleeve
Patent number
11,473,377
Issue date
Oct 18, 2022
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Information
Patent Grant
Riser adapter quick connection assembly
Patent number
11,391,112
Issue date
Jul 19, 2022
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Information
Patent Grant
Rotating control device with multiple seal cartridge
Patent number
11,236,575
Issue date
Feb 1, 2022
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
DRILLING CHOKE WITH MATCHED ACTUATOR
Publication number
20210230966
Publication date
Jul 29, 2021
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Information
Patent Application
DEPLOYMENT TOOL AND DEPLOYMENT TOOL ASSEMBLY
Publication number
20210198954
Publication date
Jul 1, 2021
NTDrill Holdings, LLC
Earl DIETRICH
E21 - EARTH DRILLING MINING
Information
Patent Application
RISER ADAPTER QUICK CONNECTION ASSEMBLY
Publication number
20210189828
Publication date
Jun 24, 2021
NTDrill Holdings, LLC
Earl DIETRICH
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotating Control Device with Flexible Sleeve
Publication number
20200325737
Publication date
Oct 15, 2020
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotating Control Device with Multiple Seal Cartridge
Publication number
20200232297
Publication date
Jul 23, 2020
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING
Information
Patent Application
Fault-Tolerant Pressure Relief System for Drilling
Publication number
20200190939
Publication date
Jun 18, 2020
Weatherford Technology Holdings, LLC.
Kevin L Gray
E21 - EARTH DRILLING MINING
Information
Patent Application
Rotating Control Device with Mechanical Seal
Publication number
20200182006
Publication date
Jun 11, 2020
NTDrill Holdings, LLC
Earl Dietrich
E21 - EARTH DRILLING MINING