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Patents Grants
last 30 patents
Information
Patent Grant
Dynamic impedance imaging system
Patent number
11,754,520
Issue date
Sep 12, 2023
Beihang University
Jiangtao Sun
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for evaluating accuracy in positioning a recei...
Patent number
11,493,595
Issue date
Nov 8, 2022
China National Petroleum Corporation
Haishen Yang
G01 - MEASURING TESTING
Information
Patent Grant
All-optical ultrasonic detection device based on light-induced ultr...
Patent number
11,209,259
Issue date
Dec 28, 2021
Beihang University
Jianguo Ma
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
DYNAMIC IMPEDANCE IMAGING SYSTEM
Publication number
20230082500
Publication date
Mar 16, 2023
BEIHANG UNIVERSITY
Jiangtao SUN
G01 - MEASURING TESTING
Information
Patent Application
GEOPHONE LOCATING ACCURACY EVALUATION METHOD AND DEVICE
Publication number
20200371195
Publication date
Nov 26, 2020
CHINA NATIONAL PETROLEUM CORPORATION
Haishen YANG
G01 - MEASURING TESTING