Roy V. Ekberg

Follow

Person

Olathe, KS, US

People

Patents Grantslast 30 patents

Information Patent Grant
Educational card game and method
- Patent number 6,402,144
- Issue date Jun 11, 2002
- Roy V. Ekberg
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Educational card game and method
- Patent number 6,109,609
- Issue date Aug 29, 2000
- Roy V. Ekberg
- A63 - SPORTS GAMES AMUSEMENTS