Yia-Ching Ray

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Columbus, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-dispersing pigment and process of making and use of same
- Patent number 6,852,156
- Issue date Feb 8, 2005
- E. I. Du Pont de Nemours and Company
- An-Gong Yeh
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for preparing a strengthened polyimide film containing orga...
- Patent number 5,272,194
- Issue date Dec 21, 1993
- E. I. Du Pont de Nemours and Company
- Anthony J. Arduengo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyimide film with tin or tin salt incorporation resulting in impr...
- Patent number 5,218,034
- Issue date Jun 8, 1993
- E. I. Du Pont de Nemours and Company
- Stuart N. Milligan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Self-dispersing pigment and process of making and use of same
- Publication number 20020014184
- Publication date Feb 7, 2002
- An-Gong Yeh
- C01 - INORGANIC CHEMISTRY