Xiangyu YANG

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Preparation method for esterquats based on oil
- Patent number 11,434,193
- Issue date Sep 6, 2022
- Evonik Operations GmbH
- Guangyuan Ma
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Catalyst for oxidation reactions, a method for its preparation and...
- Patent number 10,052,620
- Issue date Aug 21, 2018
- Evonik Degussa GmbH
- Chuanhua He
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
PREPARATION METHOD FOR ESTERQUATS BASED ON OIL
- Publication number 20210371373
- Publication date Dec 2, 2021
- Evonik Operations GmbH
- Guangyuan MA
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information Patent Application
CATALYST FOR OXIDATION REACTIONS, A METHOD FOR ITS PREPARATION AND...
- Publication number 20180133704
- Publication date May 17, 2018
- EVONIK DEGUSSA GmbH
- Chuanhua HE
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL