Yan Man Chi Sunny

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Patents Grantslast 30 patents

Information Patent Grant
Photographic chemical formula and process
- Patent number 6,521,396
- Issue date Feb 18, 2003
- Hong Kong Polytechnic University
- Yan Man Chi Sunny
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Photographic chemical formula and process
- Publication number 20020192606
- Publication date Dec 19, 2002
- Yan Man Chi Sunny
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY