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Intellectual Property Law

Faculty Articles

John Doe lawsuits

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Defense Against The Dark Arts Of Copyright Trolling, Matthew Sag, Jake Haskell Jan 2018

Defense Against The Dark Arts Of Copyright Trolling, Matthew Sag, Jake Haskell

Faculty Articles

In this Article, we offer both a legal and a pragmatic framework for defending against copyright trolls. Lawsuits alleging online copyright infringement by John Doe defendants have accounted for roughly half of all copyright cases filed in the United States over the past three years. In the typical case, the plaintiff’s claims of infringement rely on a poorly substantiated form pleading and are targeted indiscriminately at noninfringers as well as infringers. This practice is a subset of the broader problem of opportunistic litigation, but it persists due to certain unique features of copyright law and the technical complexity of Internet …


Ip Litigation In U.S. District Courts: 1994-2014, Matthew Sag Jan 2016

Ip Litigation In U.S. District Courts: 1994-2014, Matthew Sag

Faculty Articles

This Article undertakes a broad-based empirical review of intellectual property ("IP") litigation in U.S. federal district courts from 1994 to 2014. Unlike the prior literature, this study analyzes federal copyright, patent, and trademark litigation trends as a unified whole. It undertakes a systematic analysis of the records of more than 190,000 cases filed in federal courts and examines the subject matter, geographical, and temporal variation within federal IP litigation over the last two decades.

This Article analyzes changes in the distribution of IP litigation over time and their regional distribution. The key findings of this Article stem from an attempt …


Copyright Trolling, An Empirical Study, Matthew Sag Jan 2015

Copyright Trolling, An Empirical Study, Matthew Sag

Faculty Articles

This Article proceeds as follows: Part II locates MDJD suits within the broader context of the IP troll debate. It explains why attempts to define copyright trolls in terms of status—i.e., in terms of the plaintiff’s relationship to the underlying IP—are ultimately flawed and suggests a conduct-focused approach based on identifying systematic opportunism. Part II explains why MDJD lawsuits have all of the hallmarks of copyright trolling, and it explores the basic economics of MDJD litigation. It then presents empirical data documenting the astonishing rise of MDJD lawsuits over the past decade. Part III explores the role of statutory damages …