Yunfeng LI

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Sichuan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for preparing battery grade and high purity grade...
- Patent number 11,097,954
- Issue date Aug 24, 2021
- CHENGDU CHEMPHYS CHEMICAL INDUSTRY CO., LTD
- Yihua Dai
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
Method and System for Preparing Battery Grade and High Purity Grade...
- Publication number 20210323833
- Publication date Oct 21, 2021
- CHENGDU CHEMPHYS CHEMICAL INDUSTRY CO., LTD
- Yihua DAI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Method and System for Preparing Battery Grade and High Purity Grade...
- Publication number 20200385280
- Publication date Dec 10, 2020
- Yihua DAI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
AUTHENTICATION METHODS
- Publication number 20110162051
- Publication date Jun 30, 2011
- Yunfeng LI
- G06 - COMPUTING CALCULATING COUNTING