Lung-Chih Chen

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Tanzih Township, TW

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Patents Grantslast 30 patents

Information Patent Grant
Heat sink for drill bits of different sizes
- Patent number 8,016,522
- Issue date Sep 13, 2011
- Lung-Chih Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drilling tool locator having cooling effect
- Patent number 7,896,587
- Issue date Mar 1, 2011
- Lung-Chih Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Drilling auxiliary device having a cooling effect
- Patent number 7,766,584
- Issue date Aug 3, 2010
- Lung-Chih Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Brick cutting apparatus
- Patent number 6,047,871
- Issue date Apr 11, 2000
- Lung-Chih Chen
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Heat Sink for Drill Bits of Different Sizes
- Publication number 20100236753
- Publication date Sep 23, 2010
- Lung-Chih Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Drilling Auxiliary Device Having A Cooling Effect
- Publication number 20090092454
- Publication date Apr 9, 2009
- Lung-Chih Chen
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Grout sealer applicator device
- Publication number 20060239760
- Publication date Oct 26, 2006
- Lung-Chih Chen
- E04 - BUILDING