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Xiaojun HUANG
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Xiangtan, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Support device for rotation of high-capacity and compact drill pipe...
Patent number
11,371,298
Issue date
Jun 28, 2022
Hunan University of Science and Technology
Buyan Wan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wireline coring recovery system of a seafloor drilling rig and meth...
Patent number
11,041,344
Issue date
Jun 22, 2021
Hunan University of Science and Technology
Buyan Wan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Pressure-retaining cap screwing and unscrewing device for marine na...
Patent number
10,947,800
Issue date
Mar 16, 2021
Hunan University of Science and Technology
Buyan Wan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Sediment core-drilling process for submarine wire-line coring drill...
Patent number
10,927,606
Issue date
Feb 23, 2021
Hunan University of Science and Technology
Buyan Wan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Process for drilling natural gas hydrates with submersible core dri...
Patent number
10,704,350
Issue date
Jul 7, 2020
Hunan University of Science and Technology
Buyan Wan
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
WIRELINE CORING RECOVERY SYSTEM OF A SEAFLOOR DRILLING RIG AND METH...
Publication number
20210164300
Publication date
Jun 3, 2021
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Buyan WAN
E21 - EARTH DRILLING MINING
Information
Patent Application
SUPPORT DEVICE FOR ROTATION OF HIGH-CAPACITY AND COMPACT DRILL PIPE...
Publication number
20210040800
Publication date
Feb 11, 2021
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Buyan WAN
E21 - EARTH DRILLING MINING
Information
Patent Application
PRESSURE-RETAINING CAP SCREWING AND UNSCREWING DEVICE FOR MARINE NA...
Publication number
20200248518
Publication date
Aug 6, 2020
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Buyan WAN
E21 - EARTH DRILLING MINING
Information
Patent Application
PROCESS FOR DRILLING NATURAL GAS HYDRATES WITH SUBMERSIBLE CORE DRI...
Publication number
20200131875
Publication date
Apr 30, 2020
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Buyan WAN
E21 - EARTH DRILLING MINING
Information
Patent Application
SEDIMENT CORE-DRILLING PROCESS FOR SUBMARINE WIRE-LINE CORING DRILL...
Publication number
20200131853
Publication date
Apr 30, 2020
HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Buyan WAN
E21 - EARTH DRILLING MINING