Yun-chieh Chang

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Sanzao District, CN

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Patents Grantslast 30 patents

Information Patent Grant
Acrylate comb dispersing agent and preparation method and use there...
- Patent number 11,572,428
- Issue date Feb 7, 2023
- Zhuhai Trendvision New Materials Co., Ltd.
- Yun-chieh Chang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
ACRYLATE COMB DISPERSING AGENT AND PREPARATION METHOD AND USE THERE...
- Publication number 20210214480
- Publication date Jul 15, 2021
- Trendvision Technology (Zhuhai) Co. Ltd
- Yun-chieh Chang
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...