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Yuyao, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Drilling-slitting-sealing-fracturing device and method for a deep l...
Patent number
11,506,041
Issue date
Nov 22, 2022
Shandong University of Science and Technology
Gang Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Ground wellhole dedicated protective pipe for gas extraction of min...
Patent number
10,883,320
Issue date
Jan 5, 2021
Shandong University of Science and Technology
Wei Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Dynamically self-balancing pressurized borehole-sealing apparatus a...
Patent number
10,794,174
Issue date
Oct 6, 2020
Shandong University of Science and Technology
Wei Lu
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drill-power-based directional hydraulic fracturing system for downh...
Patent number
10,774,591
Issue date
Sep 15, 2020
Shandong University of Science and Technology
Gang Wang
E21 - EARTH DRILLING MINING
Information
Patent Grant
Intelligently distributed stage data mining system
Patent number
10,402,415
Issue date
Sep 3, 2019
ZHEJIANG DAFENG INDUSTRY CO., LTD
Hua Feng
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Test apparatus and a test method for the wetted perimeter of coal s...
Patent number
10,253,629
Issue date
Apr 9, 2019
Shandong University of Science and Technology
Weimin Cheng
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Multidimensional stage adaptive transmission control system
Patent number
10,127,189
Issue date
Nov 13, 2018
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Qiyun Feng
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Independent and multi-unit co-operation stage control system
Patent number
10,122,797
Issue date
Nov 6, 2018
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Hua Feng
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cloud-based multi-channel stage light adjustment system technical f...
Patent number
9,826,606
Issue date
Nov 21, 2017
Zhejiang Dafeng Industry Co. Ltd.
Hua Feng
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
KINETIC SCULPTURE AND INTELLIGENT CONTROL SYSTEM
Publication number
20230078559
Publication date
Mar 16, 2023
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Huafeng YAN
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Application
DEEP LOW-PERMEABILITY HIGH GASSY SEAM DRILLING-SLITTING-SEALING-FRA...
Publication number
20220213773
Publication date
Jul 7, 2022
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Gang WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
GROUND WELLHOLE DEDICATED PROTECTIVE PIPE FOR GAS EXTRACTION OF MIN...
Publication number
20200217202
Publication date
Jul 9, 2020
Shandong University of Science and Technology
Wei LU
E21 - EARTH DRILLING MINING
Information
Patent Application
DRILL-POWER-BASED DIRECTIONAL HYDRAULIC FRACTURING SYSTEM FOR DOWNH...
Publication number
20200080382
Publication date
Mar 12, 2020
Shandong University of Science and Technology
Gang WANG
E21 - EARTH DRILLING MINING
Information
Patent Application
DYNAMICALLY SELF-BALANCING PRESSURIZED BOREHOLE-SEALING APPARATUS A...
Publication number
20190323340
Publication date
Oct 24, 2019
Shandong University of Science and Technology
Wei LU
E21 - EARTH DRILLING MINING
Information
Patent Application
TEST APPARATUS AND A TEST METHOD FOR THE WETTED PERIMETER OF COAL S...
Publication number
20170146679
Publication date
May 25, 2017
Shandong University of Science and Technology
Weimin CHENG
G01 - MEASURING TESTING
Information
Patent Application
INTELLIGENTLY DISTRIBUTED STAGE DATA MINING SYSTEM
Publication number
20170140004
Publication date
May 18, 2017
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Hua Feng
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
MULTIDIMENSIONAL STAGE ADAPTIVE TRANSMISSION CONTROL SYSTEM
Publication number
20170039165
Publication date
Feb 9, 2017
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Qiyun Feng
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CLOUD-BASED MULTI-CHANNEL STAGE LIGHT ADJUSTMENT SYSTEM TECHNICAL F...
Publication number
20170042000
Publication date
Feb 9, 2017
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Hua Feng
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Independent and Multi-Unit Co-Operation Stage Control System
Publication number
20170034280
Publication date
Feb 2, 2017
ZHEJIANG DAFENG INDUSTRY CO., LTD.
Hua Feng
H04 - ELECTRIC COMMUNICATION TECHNIQUE