Fengren Liu

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation method and application of magnetic iron oxide and desul...
- Patent number 9,659,692
- Issue date May 23, 2017
- Beijing SJ Environmental Protection and New Material Co., Ltd.
- Zhenyi Liu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for regenerating amorphous iron oxide hydroxide and desulfur...
- Patent number 8,585,993
- Issue date Nov 19, 2013
- Beijing Sanju Enviromental Protection and New Material Co., Ltd.
- Zhenyi Liu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Composition for a desulfurizer with a high sulfur capacity and the...
- Patent number 7,717,979
- Issue date May 18, 2010
- Beijing SJ Environmental Protection and New Material Co., Ltd.
- Zhenyi Liu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION METHOD AND APPLICATION OF MAGNETIC IRON OXIDE AND DESUL...
- Publication number 20140124697
- Publication date May 8, 2014
- BEIJING SJ ENVIRONMENTAL PROTECTION AND NEW MATERIAL CO., LTD.
- Zhenyi Liu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR REGENERATING AMORPHOUS IRON OXIDE HYDROXIDE AND DESULFUR...
- Publication number 20110256039
- Publication date Oct 20, 2011
- Beijing Sanju Environmental Protection and New Material Co., Ltd.
- Zhenyi LIU
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Composition for a desulfurizer with a high sulfur capacity and the...
- Publication number 20080047395
- Publication date Feb 28, 2008
- Beijing SJ Environmental Protection and New Material Co., Ltd.
- Zhenyi Liu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...