Patent Trolls and Technology Diffusion
Massachusetts Institute of Technology (MIT) - Management Science (MS)
March 26, 2013
Patent-assertion entities, sometimes known as `patent trolls,' do not manufacture goods themselves but profit from licensing agreements that they often enforce via the threat of litigation. This paper explores empirically how litigation by a patent troll affected the sales of medical imaging technology. It finds evidence that relative to similar products, made by the same firm, but not covered by the patent, imaging software sales declined by one-third. This was not due to a suppression in underlying demand by hospitals but instead is linked to a lack of incremental product innovation during the period of litigation.
Number of Pages in PDF File: 37
Keywords: Patents, Litigation, Patent Assertion Entities, Trolls, Healthcare IT, Technology, Hospital IT, Economics of Intellectual Property
JEL Classification: K0, O3working papers series
Date posted: December 24, 2011 ; Last revised: May 21, 2013
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