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 Date: 2014-08-07 18:44:14Patent Prior art United States patent law Defensive patent aggregation Patent law Law Patent troll |
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Date: 2014-08-07 18:44:14Patent Prior art United States patent law Defensive patent aggregation Patent law Law Patent troll |
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Patent Trolls: Evidence from Targeted Firms∗ Lauren Cohen Harvard Business School and NBER Umit G. Gurun University of Texas at Dallas