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gptkb:US_Patent_7,844,940 paid
gptkb:US_Patent_8,301,710 paid
gptkb:US_Patent_8,301,713 paid
gptkb:US_Patent_8,301,711 paid
gptkb:US_Patent_7,035,035 paid
gptkb:US_Patent_645580 paid
gptkb:US_Patent_645578 paid