Howard W. Zirkle

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Elyria, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Aerator for a well water pumping system
- Patent number 7,942,198
- Issue date May 17, 2011
- Howard W. Zirkle
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
Aerator for a well water pumping system
- Publication number 20100282473
- Publication date Nov 11, 2010
- Howard W. Zirkle
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL