Lifeng Yang

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Pittsburgh, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric power system relay and on-line method of testing same
- Patent number 6,696,841
- Issue date Feb 24, 2004
- Eaton Corporation
- Lifeng Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus providing on-line indication of frequency of an AC electr...
- Patent number 6,519,537
- Issue date Feb 11, 2003
- Eaton Corporation
- Lifeng Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Electric power system relay and on-line method of testing same
- Publication number 20030184939
- Publication date Oct 2, 2003
- Lifeng Yang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER