Aloys J. Liu

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Power tool
- Patent number 9,132,542
- Issue date Sep 15, 2015
- Johnson Electric S.A.
- James Ching Sik Lau
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Brush gear of a motor
- Patent number 8,294,328
- Issue date Oct 23, 2012
- Johnson Electric S.A.
- James Ching Sik Lau
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric motor
- Patent number 8,049,391
- Issue date Nov 1, 2011
- Johnson Electric S.A.
- James Ching Sik Lau
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
POWER TOOL
- Publication number 20100071920
- Publication date Mar 25, 2010
- James Ching Sik LAU
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
ELECTRIC MOTOR
- Publication number 20100045135
- Publication date Feb 25, 2010
- James Ching Sik LAU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BRUSH GEAR OF A MOTOR
- Publication number 20100045136
- Publication date Feb 25, 2010
- James Ching Sik LAU
- H01 - BASIC ELECTRIC ELEMENTS