Charles Zhang

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Shenzhe, CH

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Patents Grantslast 30 patents

Information Patent Grant
Universal extensive sector light ring for microscopy and video insp...
- Patent number 7,931,388
- Issue date Apr 26, 2011
- Aven Tools, Inc.
- Bakir Kanpurwala
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
ADJUSTABLE LIGHT
- Publication number 20090303714
- Publication date Dec 10, 2009
- AVEN TOOLS, INC
- Bakir Kanpurwala
- F21 - LIGHTING