David C. Roy

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Stafford Springs, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Stacking toy
- Patent number D310394
- Issue date Sep 4, 1990
- The Quaker Oats Company
- David C. Roy
- D21 - Games, toys, and sports goods
Information Patent Grant
Toy stacking and kicking mechanism
- Patent number 4,879,989
- Issue date Nov 14, 1989
- The Quaker Oats Company
- David C. Roy
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Rotary drive mechanism for energizing toys, kinetic sculptures, or...
- Patent number 4,637,152
- Issue date Jan 20, 1987
- David C. Roy
- A63 - SPORTS GAMES AMUSEMENTS