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New empirical study of IP litigation in US District Courts

IP Litigation in United States District Courts: 1994 to 2014

I have just posted a new empirical study of IP litigation in US District Courts to SSRN. At the moment it has a very boring title: “IP Litigation in United States District Courts: 1994 to 2014”, but I am open to suggestions. [download it here]

What is this article about?

The article undertakes a broad-based empirical review of Intellectual Property (IP) litigation in United States federal district courts from 1994 to 2014.

Why would anyone want to read it?

Unlike the prior literature, this study analyzes federal copyright, patent and trademark litigation trends as a unified whole. It undertakes a systematic analysis of more than 190,000 individual case filings and examines the subject matter, geographical and temporal variation within federal IP litigation over the last two decades.

What is the payoff?

Well, for a start, it is full of cool graphs, figures and tables!

But if you interested in substance, I think that the article makes a number of significant contributions to our understanding of IP litigation.

  • It analyzes time trends in copyright, patent and trademark litigation filings at the national level, but it does much more than simply count the number of cases; it explores the meaning behind those numbers and shows how in some cases the observable headline data can be positively misleading.
  • Exploring the changes in the distribution of IP litigation over time and their regional distribution leads to a number of significant insights (see below).
  • Just as importantly, the article  frames the context for more fine-grained empirical studies in the future. The results demonstrate the dangers of basing empirical conclusions on narrow slices of data from selected regions or selected time periods.

Notable findings

  • The rise of Internet filesharing has transformed copyright litigation in the United States.

More specifically, to the extent that the rate of copyright litigation has increased over the last two decades, that increase appears to be entirely attributable to lawsuits against anonymous Internet file sharers. These lawsuits largely took place in two distinct phases: the first phase largely consisted of lawsuits seeking to discourage illegal downloading; the second phase largely consists lawsuits seeking to monetize online infringement.

  • In relation to patent litigation, the apparent patent litigation explosion between 2010 and 2012 is something of a mirage

However there has been a sustained patent litigation inflation over the last two decades the extent of which has not been fully recognized until now. The reason why this steady inflation was mistaken for a sudden explosion was that the true extent of patent litigation was disguised by permissive joinder.

  • The data and analysis presented in this study provides a new way of looking at the astonishing ascendancy of this district and the problem of form shopping in patent law more generally.

 In relation to the geography of IP litigation, it appears that filings in copyright, patent and trademark litigation are generally highly correlated. The major exceptions to that correlation are driven by short term idiosyncratic events in copyright and trademark litigation—these are discussed in detail—and by the dumbfounding willingness of the Eastern district Texas to engage in forum selling to attract patent litigation. The popularity of the Eastern District of Texas as a forum for patent litigation is a well-known phenomenon.