Jen Hao Dai

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Jhongli City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Hand squeeze generator
- Patent number 7,893,551
- Issue date Feb 22, 2011
- Jen Hao Dai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Hand crank generator
- Patent number 7,723,880
- Issue date May 25, 2010
- Jen Hao Dai
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

Information Patent Application
Hand Squeeze Generator
- Publication number 20090033100
- Publication date Feb 5, 2009
- Jen Hao Dai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Hand Crank Generator
- Publication number 20080180001
- Publication date Jul 31, 2008
- Jen Hao Dai
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...