Chin-Chen Yang

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Taichung Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Manually operated switch for a faucet
- Patent number 7,258,322
- Issue date Aug 21, 2007
- OPS Plumbing Products Inc.
- Chin-Chen Yang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Foldable safety sign
- Patent number 6,389,721
- Issue date May 21, 2002
- Chin-Lai Yang
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Safety sign
- Patent number 5,924,228
- Issue date Jul 20, 1999
- Chin-Lai Yang
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS