YUANHAN MATERIALS INC

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TAOYUAN CITY, TW

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Patents Grantslast 30 patents

Information Patent Grant
Para-phenylenediamine derivative, 1,4-cyclohexyldiamine derivative,...
- Patent number 11,851,387
- Issue date Dec 26, 2023
- Yuanhan Materials Inc.
- En Ming Chang
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
para-PHENYLENEDIAMINE DERIVATIVE, 1,4-CYCLOHEXYLDIAMINE DERIVATIVE,...
- Publication number 20230075418
- Publication date Mar 9, 2023
- Yuanhan Materials Inc.
- En Ming CHANG
- C07 - ORGANIC CHEMISTRY
Information Patent Application
ENVIRONMENTALLY FRIENDLY PHOTORESIST REMOVING COMPOSITION AND METHO...
- Publication number 20230038651
- Publication date Feb 9, 2023
- Yuanhan Materials Inc.
- Sheng-Chun SHA
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...

Trademarklast 30 trademarks