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Patents Grants
last 30 patents
Information
Patent Grant
Downhole multidimensional imaging feature extraction method and ima...
Patent number
11,913,324
Issue date
Feb 27, 2024
China Petroleum and Chemical Corporation
Yijin Zeng
E21 - EARTH DRILLING MINING
Information
Patent Grant
Data transmission system and method for transmission of downhole me...
Patent number
9,739,141
Issue date
Aug 22, 2017
China Petroleum and Chemical Corporation
Yijin Zeng
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
DOWNHOLE MULTIDIMENSIONAL IMAGING FEATURE EXTRACTION METHOD AND IMA...
Publication number
20220333478
Publication date
Oct 20, 2022
China Petroleum and Chemical Corporation
Yijin ZENG
E21 - EARTH DRILLING MINING
Information
Patent Application
Data Logger, Manufacturing Method Thereof and Data Acquisitor Thereof
Publication number
20170350201
Publication date
Dec 7, 2017
Ningbo Wanyou Deepwater Energy Science & Technology Co., Ltd.
Zhaorui SHI
E21 - EARTH DRILLING MINING
Information
Patent Application
Data Logger and Charger Thereof
Publication number
20170350241
Publication date
Dec 7, 2017
Ningbo Wanyou Deepwater Energy Science & Technology Co.,Ltd.
Zhaorui SHI
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Data Transmission System and Method for Transmission of Downhole Me...
Publication number
20160115783
Publication date
Apr 28, 2016
CHINA PETROLEUM & CHEMICAL CORPORATION
Yijin Zeng
E21 - EARTH DRILLING MINING