Yong Su

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Atlanta, GA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rechargeable battery power supply overcharge protection circuit
- Patent number 5,982,144
- Issue date Nov 9, 1999
- Johnson Research and Development Company, Inc.
- Lonnie G. Johnson
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Magnetic propulsion toy system
- Patent number 5,974,977
- Issue date Nov 2, 1999
- Johnson Research and Development Company, Inc.
- Lonnie G. Johnson
- A63 - SPORTS GAMES AMUSEMENTS