John Calhoun

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Ellenville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Photovoltaic module with display indicator
- Patent number 5,847,794
- Issue date Dec 8, 1998
- Besicorp Group Inc.
- David Kulik
- G05 - CONTROLLING REGULATING
Information Patent Grant
Photovoltaic module with liquid crystal display indicator
- Patent number 5,717,478
- Issue date Feb 10, 1998
- Besicorp Group Inc.
- David Kulik
- G05 - CONTROLLING REGULATING