Kehan Xiong

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Viscoelastic and reticulated polyurethane foam and the preparation...
- Patent number 10,975,212
- Issue date Apr 13, 2021
- Covestro Deutschland AG
- Liqiang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
VISCOELASTIC AND RETICULATED POLYURETHANE FOAM AND THE PREPARATION...
- Publication number 20180155516
- Publication date Jun 7, 2018
- COVESTRO DEUTSCHLAND AG
- Liqiang Li
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...