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Digital battery
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Patent number RE40663
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Issue date Mar 17, 2009
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DeNovo Research, LLC
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Martin S. Silverman
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307 - Electrical transmission or interconnection systems
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Submersible headphones
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Patent number 6,961,434
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Issue date Nov 1, 2005
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DeNovo Research, LLC
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Martin S. Silverman
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Digital battery
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Patent number 6,731,022
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Issue date May 4, 2004
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DeNovo Research, LLC
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Martin S. Silverman
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER