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Baozhi Zhu
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Houston, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Pressure energized seal with groove profile
Patent number
11,713,639
Issue date
Aug 1, 2023
Baker Hughes Oilfield Operations LLC
Joseph W. Pallini
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellhead profile with increased fatigue resistance
Patent number
10,968,716
Issue date
Apr 6, 2021
Vetco Gray, LLC
Baozhi Zhu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore seal energizing ring with retaining feature
Patent number
10,822,907
Issue date
Nov 3, 2020
Vetco Gray Inc.
Robert Jen-Yue Du
E21 - EARTH DRILLING MINING
Information
Patent Grant
Alignment guide feature for metal to metal seal protection on mecha...
Patent number
10,428,594
Issue date
Oct 1, 2019
Vetco Gray, LLC
Baozhi Zhu
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Wellbore seal energizing ring with retaining feature
Patent number
10,233,711
Issue date
Mar 19, 2019
Vetco Gray, LLC
Robert Jen-Yue Du
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Wellhead seal assembly with lockdown and slotted arrangement
Patent number
10,184,311
Issue date
Jan 22, 2019
Vetco Gray, LLC
Aniruddha D. Gadre
E21 - EARTH DRILLING MINING
Information
Patent Grant
Stress amplification factor analysis methodology for assessing fati...
Patent number
10,025,889
Issue date
Jul 17, 2018
Vetco Gray, LLC
Micah Antonio Thomas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Tube arrangement to enhance sealing between tubular members
Patent number
9,856,710
Issue date
Jan 2, 2018
Vetco Gray Inc.
Baozhi Zhu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore sealing with hybrid wicker system
Patent number
9,732,582
Issue date
Aug 15, 2017
Vetco Gray Inc.
Mayur Mansukh
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 Applications
last 30 patents
Information
Patent Application
PRESSURE ENERGIZED SEAL WITH GROOVE PROFILE
Publication number
20210222508
Publication date
Jul 22, 2021
Baker Hughes Oilfield Operations LLC
Joseph W. Pallini
E21 - EARTH DRILLING MINING
Information
Patent Application
WELLHEAD PROFILE WITH INCREASED FATIGUE RESISTANCE
Publication number
20200011147
Publication date
Jan 9, 2020
Vetco Gray, LLC
Baozhi Zhu
E21 - EARTH DRILLING MINING
Information
Patent Application
WELLBORE SEAL ENERGIZING RING WITH RETAINING FEATURE
Publication number
20190234169
Publication date
Aug 1, 2019
Vetco Gray, LLC
Robert Jen-Yue Du
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
Wellbore Seal Energizing Ring with Retaining Feature
Publication number
20170122058
Publication date
May 4, 2017
Vetco Gray Inc.
Robert Jen-Yue Du
E21 - EARTH DRILLING MINING
Information
Patent Application
Wellhead Seal Assembly with Lockdown and Slotted Arrangement
Publication number
20170114605
Publication date
Apr 27, 2017
Vetco Gray Inc.
Aniruddha D. Gadre
E21 - EARTH DRILLING MINING
Information
Patent Application
Wellbore Sealing With Hybrid Wicker System
Publication number
20160090811
Publication date
Mar 31, 2016
Vetco Gray Inc.
Mayur Mansukh
E21 - EARTH DRILLING MINING
Information
Patent Application
ALIGNMENT GUIDE FEATURE FOR METAL TO METAL SEAL PROTECTION ON MECHA...
Publication number
20150145247
Publication date
May 28, 2015
Vetco Gray Inc.
Baozhi Zhu
E21 - EARTH DRILLING MINING
Information
Patent Application
Stress Amplification Factor Analysis Methodology for Assessing Fati...
Publication number
20150127308
Publication date
May 7, 2015
Vetco Gray Inc.
Micah Antonio Thomas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
TUBE ARRANGEMENT TO ENHANCE SEALING BETWEEN TUBULAR MEMBERS
Publication number
20150114666
Publication date
Apr 30, 2015
Vetco Gray Inc.
Baozhi Zhu
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