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Zhengzhou, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Polymer composite grouting method for blocking leaking and sand inr...
Patent number
9,777,881
Issue date
Oct 3, 2017
SAFEKEY Engineering Technology(Zhengzhou), Ltd.
Fuming Wang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Polymer grouting method for uplifting ballastless track of high-spe...
Patent number
9,045,865
Issue date
Jun 2, 2015
SAFEKEY Engineering Technology(Zhengzhou), Ltd.
Fuming Wang
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Patents Applications
last 30 patents
Information
Patent Application
Grouting pipe with vibration function
Publication number
20230313484
Publication date
Oct 5, 2023
SAFEKEY Engineering Technology (Zhengzhou), Ltd.
Fuming Wang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Vibratory grouting drilling rig with auxiliary moving mechanism
Publication number
20230304366
Publication date
Sep 28, 2023
SAFEKEY Engineering Technology (Zhengzhou), Ltd.
Fuming Wang
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Application
Polymer composite grouting method for blocking leaking and sand inr...
Publication number
20160169435
Publication date
Jun 16, 2016
SAFEKEY Engineering Technology(Zhengzhou), Ltd.
Fuming Wang
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Polymer grouting method for constructing multi-wing pile
Publication number
20140314496
Publication date
Oct 23, 2014
Henan Polytech Infrastructure Rehabilitation LTD.
Fuming Wang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Polymer grouting method for constructing gravel pile
Publication number
20140314497
Publication date
Oct 23, 2014
Henan Polytech Infrastructure Rehabilitation LTD.
Fuming Wang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Polymer grouting method for uplifting ballastless track of high-spe...
Publication number
20140314502
Publication date
Oct 23, 2014
Henan Polytech Infrastructure Rehabilitation LTD.
Fuming Wang
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES