David Kozlowski

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Napa, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Sewer system vent monitor
- Patent number 7,591,278
- Issue date Sep 22, 2009
- David Kozlowski
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Drain apparatus with liquid trap and liquid level indicator
- Patent number 7,216,670
- Issue date May 15, 2007
- NSERTASEAL Corporation
- David Kozlowski
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC