Daniel R. Barnhart

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Wellhead seal with pressure energizing from below
- Patent number 10,900,316
- Issue date Jan 26, 2021
- Vetco Gray Inc.
- David Lawrence Ford
- E21 - EARTH DRILLING MINING
Information Patent Grant
External locking mechanism for seal energizing ring
- Patent number 10,138,698
- Issue date Nov 27, 2018
- Vetco Gray, LLC
- Daniel R. Barnhart
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ratcheted E-ring retention device
- Patent number 9,797,215
- Issue date Oct 24, 2017
- Vetco Gray Inc.
- David Lawrence Ford
- E21 - EARTH DRILLING MINING
Information Patent Grant
High-capacity single-trip lockdown bushing and a method to operate...
- Patent number 9,376,881
- Issue date Jun 28, 2016
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING
Information Patent Grant
Load enhanced locking arrangement
- Patent number 9,115,561
- Issue date Aug 25, 2015
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING
Information Patent Grant
Energizing ring divot back-out lock
- Patent number 9,057,231
- Issue date Jun 16, 2015
- Vetco Gray Inc.
- Daniel R. Barnhart
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SELF-LIMITING C-RING SYSTEM AND METHOD
- Publication number 20180305984
- Publication date Oct 25, 2018
- Vetco Gray Inc.
- Baozhi Zhu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WELLHEAD SEAL WITH PRESSURE ENERGIZING FROM BELOW
- Publication number 20180073319
- Publication date Mar 15, 2018
- Vetco Gray Inc.
- David Lawrence Ford
- E21 - EARTH DRILLING MINING
Information Patent Application
External Locking Mechanism for Seal Energizing Ring
- Publication number 20170089162
- Publication date Mar 30, 2017
- Vetco Gray Inc.
- Daniel R. Barnhart
- E21 - EARTH DRILLING MINING
Information Patent Application
RATCHETED E-RING RETENTION DEVICE
- Publication number 20160040498
- Publication date Feb 11, 2016
- Vetco Gray Inc.
- David Lawrence Ford
- E21 - EARTH DRILLING MINING
Information Patent Application
WELLHEAD ANNULUS SEAL HAVING A WICKERED SURFACE
- Publication number 20140238699
- Publication date Aug 28, 2014
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING
Information Patent Application
Casing Debris Cleaner
- Publication number 20140076573
- Publication date Mar 20, 2014
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING
Information Patent Application
Load Enhanced Locking Arrangement
- Publication number 20140069632
- Publication date Mar 13, 2014
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING
Information Patent Application
E-RING DIVOT BACK-OUT LOCK
- Publication number 20140069646
- Publication date Mar 13, 2014
- Vetco Gray Inc.
- Daniel R. Barnhart
- E21 - EARTH DRILLING MINING
Information Patent Application
HIGH-CAPACITY SINGLE-TRIP LOCKDOWN BUSHING AND A METHOD TO OPERATE...
- Publication number 20130248196
- Publication date Sep 26, 2013
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING
Information Patent Application
WELLHEAD ASSEMBLY HAVING A SINUSOIDAL SEALING PROFILE AND A METHOD...
- Publication number 20130248199
- Publication date Sep 26, 2013
- Vetco Gray Inc.
- Nicholas Peter Gette
- E21 - EARTH DRILLING MINING

Daniel R. Barnhart

Person

Patents Grantslast 30 patents

Wellhead seal with pressure energizing from below

External locking mechanism for seal energizing ring

Ratcheted E-ring retention device

High-capacity single-trip lockdown bushing and a method to operate...

Load enhanced locking arrangement

Energizing ring divot back-out lock

Patents Applicationslast 30 patents

SELF-LIMITING C-RING SYSTEM AND METHOD

WELLHEAD SEAL WITH PRESSURE ENERGIZING FROM BELOW

External Locking Mechanism for Seal Energizing Ring

RATCHETED E-RING RETENTION DEVICE

WELLHEAD ANNULUS SEAL HAVING A WICKERED SURFACE

Casing Debris Cleaner

Load Enhanced Locking Arrangement

E-RING DIVOT BACK-OUT LOCK

HIGH-CAPACITY SINGLE-TRIP LOCKDOWN BUSHING AND A METHOD TO OPERATE...

WELLHEAD ASSEMBLY HAVING A SINUSOIDAL SEALING PROFILE AND A METHOD...