Membership
Tour
Register
Log in
Sanguo Li
Follow
Person
Beijing, CN
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Resistivity measurement while drilling device and method
Patent number
10,571,596
Issue date
Feb 25, 2020
China Petroleum and Chemical Corporation
Yijin Zeng
G01 - MEASURING TESTING
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
RESISTIVITY MEASUREMENT WHILE DRILLING DEVICE AND METHOD
Publication number
20180045847
Publication date
Feb 15, 2018
China Petroleum and Chemical Corporation
Yijin ZENG
G01 - MEASURING TESTING
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