Shyi-Ming Chen

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West Vancouver, British Columbia, CA

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Patents Grantslast 30 patents

Information Patent Grant
Baseball with controlled stitch height and width and method of manu...
- Patent number 6,878,081
- Issue date Apr 12, 2005
- Shyi-Ming Chen
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Curve enhancing stitched baseball and softball
- Patent number 6,500,081
- Issue date Dec 31, 2002
- Shyi-Ming Chen
- A63 - SPORTS GAMES AMUSEMENTS