John C. Ketcham

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Elon, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-cylinder wind powered generator
- Patent number 7,425,776
- Issue date Sep 16, 2008
- John C. Ketcham
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

Information Patent Application
Multi-cylinder wind powered generator
- Publication number 20070296217
- Publication date Dec 27, 2007
- John C. Ketcham
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...