Orval Gideon Cowan

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Oklahoma City, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Vertical axis wind turbine
- Patent number 7,726,934
- Issue date Jun 1, 2010
- Preferred Energy, L.L.C.
- Orval Gideon Cowan
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

Information Patent Application
VERTICAL AXIS WIND TURBINE
- Publication number 20080187432
- Publication date Aug 7, 2008
- PREFERRED ENERGY, L.L.C.
- Orval Gideon Cowan
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...