John T. Hewitt

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Rancho Palos Verdes, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Liquid level sensor with level alarm
- Patent number 7,658,104
- Issue date Feb 9, 2010
- John T. Hewitt
- G01 - MEASURING TESTING
Information Patent Grant
Liquid level sensor
- Patent number 7,634,944
- Issue date Dec 22, 2009
- John T. Hewitt
- G01 - MEASURING TESTING
Information Patent Grant
Liquid level sensor with flow restrictor
- Patent number 7,587,940
- Issue date Sep 15, 2009
- John T. Hewitt
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
LIQUID LEVEL SENSOR WITH LEVEL ALARM
- Publication number 20080271527
- Publication date Nov 6, 2008
- John T. Hewitt
- G01 - MEASURING TESTING
Information Patent Application
LIQUID LEVEL SENSOR
- Publication number 20080271516
- Publication date Nov 6, 2008
- John T. Hewitt
- G01 - MEASURING TESTING
Information Patent Application
LIQUID LEVEL SENSOR WITH FLOW RESTRICTOR
- Publication number 20080271526
- Publication date Nov 6, 2008
- John T. Hewitt
- G01 - MEASURING TESTING