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Tianjin, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Homogeneous fiber reinforced PVDF hollow fiber membrane and prepara...
Patent number
10,906,006
Issue date
Feb 2, 2021
Tianjin Polytechnic University
Changfa Xiao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method for preparing aromatic polyamide porous hollow fiber membrane
Patent number
9,415,348
Issue date
Aug 16, 2016
Tianjin Polytechnic University
Changfa Xiao
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Preparation method of perfluorinated polymer hollow fiber membrane
Patent number
9,211,503
Issue date
Dec 15, 2015
Tianjin Polytechnic University
Changfa Xiao
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Composition for preparation of hollow fiber porous membrane and pre...
Patent number
9,095,819
Issue date
Aug 4, 2015
Tianjin Polytechnic University
Changfa Xiao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of preparing oil absorbing fibers
Patent number
8,110,525
Issue date
Feb 7, 2012
Tianjin Polytechnic University
Changfa Xiao
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Patents Applications
last 30 patents
Information
Patent Application
Homogeneous fiber reinforced PVDF hollow fiber membrane and prepara...
Publication number
20180272289
Publication date
Sep 27, 2018
TIANJIN POLYTECHNIC UNIVERSITY
Changfa Xiao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Method for preparing aromatic polyamide porous hollow fiber membrane
Publication number
20160001234
Publication date
Jan 7, 2016
TIANJIN POLYTECHNIC UNIVERSITY
Changfa Xiao
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Preparation method of homogeneous-reinforced PVDF hollow fiber memb...
Publication number
20150096934
Publication date
Apr 9, 2015
TIANJIN POLYTECHNIC UNIVERSITY
Changfa Xiao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Preparation method of enhanced-type polyacrylonitrile hollow fiber...
Publication number
20140326659
Publication date
Nov 6, 2014
Changfa Xiao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Preparation method of perfluorinated polymer hollow fiber membrane
Publication number
20140311968
Publication date
Oct 23, 2014
TIANJIN POLYTECHNIC UNIVERSITY
Changfa Xiao
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
COMPOSITION FOR PREPARATION OF HOLLOW FIBER POROUS MEMBRANE AND PRE...
Publication number
20110147300
Publication date
Jun 23, 2011
TIANJIN POLYTECHNIC UNIVERSITY
Changfa XIAO
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD OF PREPARING OIL ABSORBING FIBERS
Publication number
20090306259
Publication date
Dec 10, 2009
TIANJIN POLYTECHNIC UNIVERSITY
Changfa XIAO
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING