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Chenxi Zhang
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Singapore, SG
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Patents Grants
last 30 patents
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Patent Grant
Polyurethane ballast layer, the method for preparing the same and t...
Patent number
8,876,014
Issue date
Nov 4, 2014
Bayer MaterialScience AG
Chenxi Zhang
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Patents Applications
last 30 patents
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Patent Application
POLYURETHANE BALLAST LAYER, THE METHOD FOR PREPARING THE SAME AND T...
Publication number
20130140373
Publication date
Jun 6, 2013
Bayer Intellectual Property GmbH
Chenxi Zhang
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES