Nai Yan Cheng

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Kowloon, HK

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Patents Grantslast 30 patents

Information Patent Grant
Gemstone
- Patent number D463753
- Issue date Oct 1, 2002
- Continental Jewelry (USA) Inc.
- Nai Yan Cheng
- D11 - Jewelry, symbolic insignia, and ornaments
Information Patent Grant
Gemstone
- Patent number D453120
- Issue date Jan 29, 2002
- Continental Jewelry (USA) Inc.
- Nai Yan Cheng
- D11 - Jewelry, symbolic insignia, and ornaments
Information Patent Grant
Gemstone
- Patent number D449558
- Issue date Oct 23, 2001
- Continental Jewelry (USA) Inc.
- Nai Yan Cheng
- D11 - Jewelry, symbolic insignia, and ornaments