Typology of the Patent Troll Business

Pohlmann, T.; Opitz, M. (2013): Typology of the Patent Troll Business, R&D Management, Volume 43, Issue 2, pages 103–120, March 2013.

28 Pages Posted: 19 Nov 2010 Last revised: 28 May 2013

Tim Christoph Pohlmann

Berlin University of Technology, Chair of Innovation Economics

Marieke Opitz

University of Marburg

Date Written: June 2011

Abstract

Patent trolls have many faces, since the media uses this expression in various ways. The patent troll phenomenon thus seems to be an ambiguous term that is discussed in several directions. This paper reveals that a patent troll as such has no distinct shape or appearance. Our analysis redeems a troll classification solely from firms’ market position, such as being non-practicing, and shows that a patent troll business can only be defined by the respective practice to enforce IPR. Using 10 case studies, of which five are treated in detail, the analysis reveals a distinct typology of IPR enforcement mechanisms and suggests a framework to assess the troll business. This paper is furthermore able to identify the nature of troll behavior to be: a) a best practice to enforce IP rights and b) a strategy that may create costs for affected industries. The differentiated troll analysis further reveals negative but also positive effects of the troll business on incentives to innovate.

Keywords: Patent Trolls, Litigation, IPR Enforcement

JEL Classification: L10, L14, L15

Suggested Citation

Pohlmann, Tim Christoph and Opitz, Marieke, Typology of the Patent Troll Business (June 2011). Pohlmann, T.; Opitz, M. (2013): Typology of the Patent Troll Business, R&D Management, Volume 43, Issue 2, pages 103–120, March 2013.. Available at SSRN: https://ssrn.com/abstract=1711316 or http://dx.doi.org/10.2139/ssrn.1711316

Tim Christoph Pohlmann (Contact Author)

Berlin University of Technology, Chair of Innovation Economics ( email )

Berlin, 10585
Germany
+49 (0) 30 314 76624 (Phone)

HOME PAGE: http://www.inno.tu-berlin.de

Marieke Opitz

University of Marburg ( email )

Universitätsstrasse 24
D-35032 Marburg, D-35032
Germany

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