TingTuan XU

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electric motor
- Patent number 8,217,548
- Issue date Jul 10, 2012
- Johnson Electric S.A.
- RuiFeng Qin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric motor
- Patent number 7,982,354
- Issue date Jul 19, 2011
- Johnson Electric S.A.
- RuiFeng Qin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric motor
- Patent number 7,821,170
- Issue date Oct 26, 2010
- Johnson Electric S.A.
- RuiFeng Qin
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC MOTOR
- Publication number 20110023798
- Publication date Feb 3, 2011
- Ruifeng QIN
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ELECTRIC MOTOR
- Publication number 20100326378
- Publication date Dec 30, 2010
- Ruifeng QIN
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ELECTRIC MOTOR
- Publication number 20090058210
- Publication date Mar 5, 2009
- Ruifeng QIN
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES