Shanshi Guo

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for purifying 1,5-pentanediamine and the 1,5-pentanediamine...
- Patent number 11,008,279
- Issue date May 18, 2021
- CATHAY BIOTECH INC.
- Bingbing Qin
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for purifying 1,5-pentanediamine and 1,5-pentanediamine
- Patent number 10,538,481
- Issue date Jan 21, 2020
- CATHAY BIOTECH INC.
- Bingbing Qin
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PURIFYING 1,5-PENTANEDIAMINE AND THE 1,5-PENTANEDIAMINE...
- Publication number 20200109104
- Publication date Apr 9, 2020
- CIBTAmerica Inc.
- Bingbing Qin
- C07 - ORGANIC CHEMISTRY
Information Patent Application
METHOD FOR PURIFYING 1,5-PENTANEDIAMINE AND 1,5-PENTANEDIAMINE
- Publication number 20180002272
- Publication date Jan 4, 2018
- CATHAY R&D CENTER CO., LTD.
- Bingbing Qin
- C07 - ORGANIC CHEMISTRY