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Photovoltaic ladder inverter
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Patent number 8,207,630
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Issue date Jun 26, 2012
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Stellaris Corporation
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James B. Paull
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Photovoltaic ladder inverter
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Patent number 8,080,899
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Issue date Dec 20, 2011
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Stellaris Corporation
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James B. Paull
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Heat recovery apparatus
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Patent number 4,930,571
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Issue date Jun 5, 1990
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Industrial Energy Corporation
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James B. Paull
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F24 - HEATING RANGES VENTILATING
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Heat exchange recovery method
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Patent number 4,928,749
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Issue date May 29, 1990
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Industrial Energy Corporation
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James B. Paull
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F24 - HEATING RANGES VENTILATING
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