Changguang QI

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Ningbo City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Construction method of fast-setting polymer grouting for rapid cont...
- Patent number 12,116,746
- Issue date Oct 15, 2024
- Zhichao Zhang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Rainfall induction type two-component high-polymer grouting device...
- Patent number 11,230,817
- Issue date Jan 25, 2022
- Changguang Qi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
Construction Method of Fast-setting Polymer Grouting for Rapid Cont...
- Publication number 20230009242
- Publication date Jan 12, 2023
- Fujian Geological Engineering Survey Institute
- Zhichao Zhang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Application
RAINFALL INDUCTION TYPE TWO-COMPONENT HIGH-POLYMER GROUTING DEVICE...
- Publication number 20210292986
- Publication date Sep 23, 2021
- Ningbo University
- Changguang QI
- G01 - MEASURING TESTING