Virginia Chi-Chuen Chao

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Essex Jct., VT, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of inhibiting contaminants using dilute acid rinse
- Patent number 6,758,912
- Issue date Jul 6, 2004
- International Business Machines Corporation
- Virginia Chi-Chuen Chao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of minimizing contaminating deposits using dilute acid rinse
- Patent number 6,494,966
- Issue date Dec 17, 2002
- International Business Machines Corporation
- Virginia Chi-Chuen Chao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dilute acid rinse after develop for chrome etch
- Patent number 6,162,565
- Issue date Dec 19, 2000
- International Business Machines Corporation
- Virginia Chi-Chuen Chao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Method of inhibiting contaminants using dilute acid rinse
- Publication number 20030051740
- Publication date Mar 20, 2003
- Virginia Chi-Chuen Chao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method of minimizing contaminating deposits using dilute acid rinse
- Publication number 20010001958
- Publication date May 31, 2001
- Virginia Chi-Chuen Chao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY