Li-Feng Luo

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Solon, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Three stage power source for electric arc welding
- Patent number 8,785,816
- Issue date Jul 22, 2014
- Lincoln Global, Inc.
- Todd E. Kooken
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
THREE STAGE POWER SOURCE FOR ELECTRIC ARC WELDING
- Publication number 20070051712
- Publication date Mar 8, 2007
- Lincoln Global, Inc.
- Todd E. Kooken
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR