Charles Sipes

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Johnston, RI, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable traction wheel for in-line roller skate
- Patent number 6,260,861
- Issue date Jul 17, 2001
- Mearthane Products Corporation
- Albert C. Chiang
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Variable traction wheel for in-line roller skate
- Patent number 5,829,757
- Issue date Nov 3, 1998
- Mearthane Products Corporation
- Albert C. Chiang
- A63 - SPORTS GAMES AMUSEMENTS