Pui-Chung Lau

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West Point, HK

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Patents Grantslast 30 patents

Information Patent Grant
Infant activity gymnasium unit
- Patent number D387814
- Issue date Dec 16, 1997
- Vtech Industries, L.L.C.
- Ka-Wah Chow
- D21 - Games, toys, and sports goods
Information Patent Grant
Infant activity gymnasium unit
- Patent number D374691
- Issue date Oct 15, 1996
- VTech Industries, Inc.
- Ka-Wah Chow
- D21 - Games, toys, and sports goods
Information Patent Grant
Electronic educational game housing
- Patent number D369831
- Issue date May 14, 1996
- VTech Industries, Inc.
- Ka-Wah Chow
- D19 - Office supplies