John W. Duffy

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Bullshoals, AR, US

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Patents Grantslast 30 patents

Information Patent Grant
Gas level monitoring system and gas flow rate sensor used therein
- Patent number 6,668,665
- Issue date Dec 30, 2003
- Fisher Controls International, Inc.
- Kenneth Roger Schimnowski
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Propane tank level monitoring device and system
- Publication number 20020104387
- Publication date Aug 8, 2002
- Kenneth Roger Schimnowski
- G01 - MEASURING TESTING