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Shanghai, CN
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Patents Grants
last 30 patents
Information
Patent Grant
External pressure type hollow fiber membrane component, filtration...
Patent number
12,097,468
Issue date
Sep 24, 2024
HAINAN LITREE PURIFYING TECHNOLOGY CO., LTD.
Qing Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Hollow-fiber membrane assembly having the function of preventing th...
Patent number
8,246,827
Issue date
Aug 21, 2012
Suzhou Litree Purifying Technology Co. Ltd.
Lianggang Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Hollow fiber membrane module
Patent number
8,197,688
Issue date
Jun 12, 2012
Hainan Litree Purifying Tech Co., Ltd.
Daichi Sakashita
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Hollow fibre membrane module with a fixed structure
Patent number
7,648,633
Issue date
Jan 19, 2010
Shanghai Litree Purifying Equipment Co., Ltd.
Lianggang Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Pvc hollow filtration membrane and the preparation method thereof
Patent number
7,435,348
Issue date
Oct 14, 2008
Shanghai Litree Purifying Equipment Co., Ltd.
Lianggang Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
EXTERNAL PRESSURE TYPE HOLLOW FIBER MEMBRANE COMPONENT, FILTRATION...
Publication number
20220250008
Publication date
Aug 11, 2022
HAINAN LITREE PURIFYING TECHNOLOGY CO., LTD.
Qing CHEN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HOLLOW-FIBER MEMBRANE ASSEMBLY HAVING THE FUNCTION OF PREVENTING TH...
Publication number
20100206805
Publication date
Aug 19, 2010
SUZHOU LITREE PURIFYING TECHNOLOGY CO. LTD.
Lianggang Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
SHAFT TYPE SUBMERGED HOLLOW FIBRE MEMBRANE MODULE
Publication number
20100065485
Publication date
Mar 18, 2010
Lianggang CHEN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Hollow Fiber Membrane Module
Publication number
20090218274
Publication date
Sep 3, 2009
Daichi Sakashita
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HOLLOW FIBRE MEMBRANE MODULE WITH A FIXED STRUCTURE
Publication number
20090071894
Publication date
Mar 19, 2009
Lianggang Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Pvc hollow filtration membrane and the preparation method thereof
Publication number
20060196825
Publication date
Sep 7, 2006
Lianggang Chen
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL