He-Jin Chen

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Lung-Ching Hsiang, Taichung Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning device having cleaning agent provided therein
- Patent number 6,220,527
- Issue date Apr 24, 2001
- He-Jin Chen
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Sponge mop with a cleaning tank attached thereto
- Patent number 6,217,244
- Issue date Apr 17, 2001
- He-Jin Chen
- A46 - BRUSHWARE
Information Patent Grant
Sponge mop with cleaning tank attached thereto
- Patent number 6,146,041
- Issue date Nov 14, 2000
- He-Jin Chen
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...