Chi Hang Ngai

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Hong Kong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Lamination
- Patent number 8,492,953
- Issue date Jul 23, 2013
- Johnson Electric S.A.
- James Ching Sik Lau
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Lamination
- Publication number 20080001496
- Publication date Jan 3, 2008
- Johnson Electric S.A.
- James Ching Sik Lau
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER