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This book chapter presents the findings of an empirical study of German and U.K. patent litigation involving patent assertion entities (PAEs). Overall, we find that PAEs account for roughly ten percent of patent suits filed in these countries during the time periods covered by our study: 2000-2008 for Germany and 2000- 2013 for the U.K. We also present a variety of additional data on the characteristics of European PAE suits and PAE-asserted patents and, finally, consider what our findings suggest are the most important reasons PAEs tend to avoid European courts. We conclude that, while many factors likely contribute to the relative scarcity of PAEs in Europe, the continent’s fee-shifting regimes stand out as a key deterrent to patent monetization.


D. Daniel Sokol (ed.), Patent Assertion Entities and Competition Policy, Cambridge University Press, 2016, Forthcoming

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