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last 30 patents
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Patent Grant
System and method for recycling rare earth and ammonia nitrogen fro...
Patent number
10,046,979
Issue date
Aug 14, 2018
CHINA UNIVERSITY OF GEOSCIENCES (WUHAN)
Chunjie Yan
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for preparing ultra-light-weight (ULW) proppant applied on o...
Patent number
9,410,077
Issue date
Aug 9, 2016
CHINA UNIVERSITY OF GEOSIENCES (WUHAN)
Chunjie Yan
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
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Patent Application
SYSTEM AND METHOD FOR RECYCLING RARE EARTH AND AMMONIA NITROGEN FRO...
Publication number
20170137300
Publication date
May 18, 2017
CHINA UNIVERSITY OF GEOSCIENCES (WUHAN)
Chunjie YAN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PREPARING ULTRA-LIGHT-WEIGHT (ULW) PROPPANT APPLIED ON O...
Publication number
20160046856
Publication date
Feb 18, 2016
CHINA UNIVERSITY OF GEOSCIENCES (WUHAN)
Chunjie Yan
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...