David G. Fern

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Santee, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for sensing a fluid supply status
- Patent number 6,992,590
- Issue date Jan 31, 2006
- Xsilogy, Inc.
- Steven Tietsworth
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information Patent Grant
Systems and methods for sensing pressure
- Patent number 6,856,251
- Issue date Feb 15, 2005
- Xsilogy, Inc.
- Steven Tietsworth
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...