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Draft Your Patents Carefully, PTAB Litigation Blog

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Droplets, Inc. v. E*TRADE Bank, No. 16-2504 (Fed. Cir. Apr. 19, 2018), is a cautionary tale on the need for careful patent prosecution. Because of an error in the priority claim, Droplets lost its right to claim an earlier effective filing date, and its claims were invalidated over its own PCT application.

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