Tag: Empirical Legal Studies

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(4/4) 2015 Data on the geographic distribution of US IP litigation

2015 Update

This is the fourth and final post in a series discussing the 2015 Update to the data in my forthcoming article, IP Litigation in United States District Courts: 1994 to 2014 (Iowa Law Review, forthcoming 2016). You can read the 2015 Update in serial form in the posts that follow, or you can download the entire update as a pdf file from ssrn.com. See Suggested citation, Matthew Sag, IP Litigation in United States District Courts—2015 Update (January 5, 2016). Available at SSRN: http://ssrn.com/abstract=2711326.

The previous post discussed recent trends in patent litigation and the true nature of the patent litigation explosion. This post concludes with an update to the data concerning the geographic distribution of copyright, patent and trademark litigation in US district courts.

4. The geographic distribution of copyright, patent and trademark litigation

In  IP Litigation in United States District Courts: 1994 to 2014, I discussed at length the geographic distribution of copyright, patent and trademark litigation. I have updated the key figures and tables from that discussion below. Figure 6 (below) illustrates how the copyright, patent and trademark litigation rankings of selected districts have varied from 1994 to 2015.

Figure 6 Copyright, Patent and Trademark Litigation Rankings by District 1994—2014

Spagetti Districts Combined

Source: Administrative Office of the U.S. Courts, PACER records, 1994—2015.

The associated tables are not particularly easy to read in this format, but I have included them for completeness. They are available in text form in the pdf version of this Update, see Matthew Sag, IP Litigation in United States District Courts—2015 Update (January 5, 2016)(http://ssrn.com/abstract=2711326).

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(3/4) 2015 Data on Patent Litigation in the US

2015 Update

This is the third  in a series of posts discussing the 2015 Update to the data in my forthcoming article, IP Litigation in United States District Courts: 1994 to 2014 (Iowa Law Review, forthcoming 2016). You can read the 2015 Update in serial form in the posts that follow, or you can download the entire update as a pdf file from ssrn.com. See Suggested citation, Matthew Sag, IP Litigation in United States District Courts—2015 Update (January 5, 2016). Available at SSRN: http://ssrn.com/abstract=2711326.

The previous post discussed new data on copyright litigation and the John Doe phenomenon, this post examines recent trends in patent litigation and the true nature of the patent litigation explosion.

3. Patent Litigation

As I explained in IP Litigation in United States District Courts: 1994 to 2014, the filing data gives a misleading impression of the true extent of patent litigation because the rules relating to joinder changed in 2011 with the passage of the America Invents Act. At first glance, it looks as though there was an enormous spike in patent litigation between 2010 and 2012; however, this spike is at least partly attributable to an important procedural change brought about by the AIA. Prior to the AIA, it was common for patent plaintiffs to join multiple unrelated defendants in a single lawsuit based on a commonly-asserted patent or patents. The AIA ended this ruse and resulted in a nominal explosion of patent infringement lawsuits. Figure 4 (below) shows the number of cases filed in each year from 1994 2015 (see the gray bars) but it also shows the estimated number of defendants for each year. Essentially, prior to the America Invents Act of 2011, the true extent of litigation was disguised through permissive joinder of unrelated (or tenuously related) parties. This practice was particularly common in the Eastern District of Texas, the patent troll’s favorite hunting ground (see Figure 5 (below)). Note that although the trend in patent case filings is more or less flat between 2012 and 2015, the number of patent defendants has sharply declined over the same period.

Figure 4 Patent Cases Filed and Estimated Number of Defendants, 1994—2015

Figure 5

Source: Bloomberg Law, 1994–2015. Bar chart depicts cases filed. Scatterplot depicts estimated number of defendants. Quadratic fit lines from 1994 to 2010 and 2012 to 2015 are drawn for illustrative purposes.

The data underlying Figure 4 is also presented in tabular form below.

Table 4 Patent Defendants 1994—2015

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Figure 5 Average Number of Patent Defendants per Filing 1994–2015

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Source: Bloomberg Law, 1994–2015.

Figure 5 (above) shows the estimated number of defendants per suit for the nine most popular federal districts from 1994 to 2015 and also for an aggregation of all other districts. The vertical dashed line is set to 2011 to mark the passage of the AIA. It is starkly apparent that the trend toward more defendants was driven by the Eastern District of Texas. The estimated number of defendants in Eastern District of Texas climbed steeply from 1.66 in 1994 to 12.37 in 2010 and then dropped precipitously down to 1.99 in 2014. It has fallen further in 2015, to 1.90 defendants per suit.

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(2/4) 2015 Data on Copyright Litigation in the US

2015 Update

This is the second  in a series of posts discussing the 2015 Update to the data in my forthcoming article, IP Litigation in United States District Courts: 1994 to 2014 (Iowa Law Review, forthcoming 2016). You can read the 2015 Update in serial form in the posts that follow, or you can download the entire update as a pdf file from ssrn.com. See Suggested citation, Matthew Sag, IP Litigation in United States District Courts—2015 Update (January 5, 2016). Available at SSRN: http://ssrn.com/abstract=2711326.

The previous post discussed the overall state of copyright, patent and trademark litigation, this post addresses the new data on copyright litigation and the John Doe phenomenon.

2. Copyright Litigation and the John Doe Phenomenon

Figure 2 (above), shows how the dramatic increase in copyright litigation from 2010 to 2015 is almost exclusively attributable to litigation against anonymous Internet file sharers. The figure shows the number of copyright cases including (dashed red line) and excluding (solid red line) cases filed against John Doe defendants. As discussed in Copyright Trolling, An Empirical Study, and IP Litigation in United States District Courts: 1994 to 2014, the rise of Internet filesharing has transformed copyright litigation in the United States. Federal district courts are currently inundated with copyright owner lawsuits against “John Doe” or “unknown” or otherwise unidentified defendants. Figure 3 (below) tracks the occurrence of these John Doe lawsuits from 1994 through 2015. These John Doe lawsuits are almost exclusively related to allegations of illegal filesharing, which explains why they were virtually non-existent prior to 2004.

Figure 3: Copyright Cases Filed in U.S. District Courts (1994—2015)

Figure 3

Source: Administrative Office of the U.S. Courts, PACER records, 1994—2015.

John Doe litigation has not been a static phenomenon. The current era of BitTorrent monetization began in 2010 with a handful of cases filed against large numbers—sometimes more than 5000—IP addresses. Filing suits in this way enabled plaintiffs to economize on filing fees but courts have become significantly more skeptical of the legality and desirability of mass joinder in BitTorrent cases. Based on the data from 2015, it seems that the era of mass joinder is almost completely over. As seen in Table 2 (below), in 2010 the average number of John Doe defendants per suit was over 560; by 2014 it was just over 3 and in 2015 it was barely over 2. As Table 2 also shows, although pornography still dominates John Doe litigation, the phenomenon is becoming increasingly mainstream.

Table 2 John Doe Copyright Cases 2010—2015

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John Doe and pornography cases identified by the author. In 2015 John Doe litigation made up almost 58% of the federal copyright docket (2930 cases out of 5076). One of the most interesting aspects of this phenomenon is that it is driven by such a small number of plaintiffs and— based on my random sampling of the underlying complaints—an even smaller number of lawyers.

Table 3 shows the five most prolific John Doe litigants for each year from 2011 to 2015. In 2015 Malibu Media was still the most significant individual copyright plaintiff in the US; in fact, it filed more suits than ever last year. However, Malibu Media accounted for a smaller percentage of copyright lawsuits in 2015 because other plaintiffs also ramped up their efforts. Malibu Media accounted for 41.5% of all copyright suits in the US in 2014, and just over 39% in 2015. Malibu Media is represented by Michael Keith Lipscomb of Lipscomb, Eisenberg & Baker, PL. Lipscomb also represents two of the other plaintiffs on the top five list for last year—Manny Film and Plastic The Movie Limited—as well as two of the top five from 2014—Good Man Productions, Inc. and Poplar Oaks, Inc. The filing fee for opening civil action in US district courts is now $400, so that means that plaintiffs associated with Mr Lipscomb have paid at least $936,800 in filing fees over the last year. Given the scale of this enterprise it seems reasonable to infer that Lipscomb and his clients have found a way to effectively monetize online infringement.

Table 3 Top Five Copyright John Doe Plaintiffs 2011—2015

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(1/4) 2015 Data on IP Litigation in US District Courts

Introduction to the 2015 Update

This is the first in a series of posts discussing the 2015 Update to the data in my forthcoming article, IP Litigation in United States District Courts: 1994 to 2014 (Iowa Law Review, forthcoming 2016).

My original piece, IP Litigation in United States District Courts, undertakes a broad-based empirical review of Intellectual Property (IP) litigation in United States federal district courts from 1994 to 2014. This brief update extends that data to include the year 2015. For a detailed discussion of the data sources and methods, please refer to the original article.

This update contains new data on

  1.  the overall state of copyright, patent and trademark litigation,
  2. copyright litigation and the John Doe phenomenon,
  3. the continuation of the patent litigation explosion and
  4. the geographic distribution of copyright, patent and trademark litigation.

You can read the 2015 Update in serial form in the posts that follow, or you can download the entire update as a pdf file from ssrn.com. See Suggested citation, Matthew Sag, IP Litigation in United States District Courts—2015 Update (January 5, 2016). Available at SSRN: http://ssrn.com/abstract=2711326.

1. Copyright and Patent Litigation Increasing, Trademark Litigation Declining

The two most important trends in IP litigation over the last five years have been the extraordinary increase in patent and copyright litigation and the corresponding relative decline of federal trademark litigation. These trends continued in 2015.

Figure 1: Copyright, Patent and Trademark Filings 1994—2015 (Percent)

Figure 1

Twelve month moving average of percent of Federal IP litigation. Source: Administrative Office of the U.S. Courts, PACER records, 1994—2015.

Figure 1 (above) shows the relative proportions of copyright, patent and trademark cases filed, based on a 12 month moving average between 1994 and 2015. As the figure makes plain, the relative shares of copyright, patent and trademark have fluctuated quite significantly over the period. The proportion of cases in the federal IP docket did not change significantly from 2014 to 2015 (39% in 2014, 41% in 2015); however, copyright increased significantly from 32% to 37% and this was matched by a corresponding decline in trademark litigation from 29% to 22%. Complete year-by-year data from 1994 to 2015 are presented in Table 1 (below).

Table 1: Copyright, Patent and Trademark Filings 1994—2015

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The increase in copyright and patent litigation can be seen even more clearly in Figure 2 (below) which shows the raw number of cases filed for each type of IP (displayed as a 12 month moving average).

Figure 2 Copyright, Patent and Trademark Filings 1994—2015 (Cases)

Figure 2

Twelve month moving average of cases filed. Source: Administrative Office of the U.S. Courts, PACER records, 1994—2015.

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