*[https://law.lexmachina.com/cases/?case_types-include=27&filed_on-from=2015-01-01&filed_on-to=2015-12-31&filters=true&view=analytics&tab=summary&cols=475 LexMachina FY2015 Patent Case Filings]
*[http://www.txed.uscourts.gov/ US District Court - Eastern District of Texas]
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