Alvin R. Wirthlin

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Lucas, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Optical transducer for detecting liquid level
- Patent number 7,259,383
- Issue date Aug 21, 2007
- Opti Sensor Systems, LLC
- Alvin R. Wirthlin
- G01 - MEASURING TESTING
Information Patent Grant
Optical transducer for continuously determining liquid level
- Patent number 7,161,165
- Issue date Jan 9, 2007
- Opti Sensor Systems, LLC
- Alvin R. Wirthlin
- G01 - MEASURING TESTING
Information Patent Grant
Optical transducer for detecting liquid level and electrical circui...
- Patent number 7,109,512
- Issue date Sep 19, 2006
- Opti Sensor Systems, LLC
- Alvin R. Wirthlin
- G01 - MEASURING TESTING