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Wanjia ZHANG
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Hubei, CN
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Patents Grants
last 30 patents
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Patent Grant
Ultraviolet curing pipeline repair robot and system
Patent number
11,041,587
Issue date
Jun 22, 2021
WUHAN EASY-SIGHT TECHNOLOGY CO., LTD.
Zhiguo Liu
B32 - LAYERED PRODUCTS
Information
Patent Grant
Pipeline robot, pipeline video-signal acquisition and transmission...
Patent number
10,894,323
Issue date
Jan 19, 2021
WUHAN EASY-SIGHT TECHNOLOGY CO., LTD.
Zhiguo Liu
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Patents Applications
last 30 patents
Information
Patent Application
ULTRAVIOLET CURING PIPELINE REPAIR ROBOT AND SYSTEM
Publication number
20200166172
Publication date
May 28, 2020
WUHAN EASY-SIGHT TECHNOLOGY CO., LTD.
Zhiguo LIU
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
PIPELINE ROBOT, PIPELINE VIDEO-SIGNAL ACQUISITION AND TRANSMISSION...
Publication number
20200094413
Publication date
Mar 26, 2020
WUHAN EASY-SIGHT TECHNOLOGY CO., LTD.
Zhiguo LIU
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS