David B.P. Lewenz

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St. Petersburg, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Ballasted roof and ground mounted solar panel racking system
- Patent number 8,661,748
- Issue date Mar 4, 2014
- David B. P. Lewenz
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
BALLASTED ROOF AND GROUND MOUNTED SOLAR PANEL RACKING SYSTEM
- Publication number 20130200016
- Publication date Aug 8, 2013
- David B.P. Lewenz
- F24 - HEATING RANGES VENTILATING
Information Patent Application
BALLASTED ROOF AND GROUND MOUNTED SOLAR PANEL RACKING SYSTEM
- Publication number 20130200018
- Publication date Aug 8, 2013
- David B.P. Lewenz
- F24 - HEATING RANGES VENTILATING
Information Patent Application
BALLASTED SOLAR HOT WATER RACKING SYSTEM FOR FLAT PLATE COLLECTORS
- Publication number 20130192587
- Publication date Aug 1, 2013
- David B.P. Lewenz
- F24 - HEATING RANGES VENTILATING