Chunhua Qin

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Heteropolyacid salt catalysts and their preparation method
- Patent number 11,325,109
- Issue date May 10, 2022
- Xin Wen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Methods for preparing methacrolein from t-butanol
- Patent number 9,522,866
- Issue date Dec 20, 2016
- Shanghai Huayi New Material Co., Ltd
- Xiaoqi Zhao
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation process of a complex oxide catalyst and application the...
- Patent number 8,623,780
- Issue date Jan 7, 2014
- Shanghai HuaYi Acrylic Acid Co., Ltd.
- Xuemei Li
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Methods for Preparing Methacrolein from t-Butanol
- Publication number 20160185698
- Publication date Jun 30, 2016
- Shanghai HuaYi Acrylic Acid Co., Ltd.
- Xiaoqi Zhao
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Heteropolyacid Salt Catalysts and Their Preparation Method
- Publication number 20160184807
- Publication date Jun 30, 2016
- Shanghai HuaYi Acrylic Acid Co., Ltd.
- Xin Wen
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Preparation process of a complex oxide catalyst and application the...
- Publication number 20100204513
- Publication date Aug 12, 2010
- Shanghai Huayi Acrylic Acid Co., Ltd.
- Xuemei Li
- C07 - ORGANIC CHEMISTRY