How did TC Heartland Affect Firm Value?

In Recalibrating Patent Venue, Colleen Chien and I did a nationwide study of forum shopping in patent cases (shocker - everybody did it, and not just in Texas), and predicted that many patent cases would shift from the Eastern District to the District of Delaware. And, lo, it has come to pass. Delaware is super busy. This has been good for us at Villanova (only 30 miles away from the court), as our students are getting some great patent experience in externships and internships.

But how much did firms value not being sued in Texas? The TC Heartland case is a clear shock event, so an event study can measure this. In Will Delaware Be Different? An Empirical Study of TC Heartland and the Shift to Defendant Choice of Venue, Ofer Eldar (Duke Law) and Neel Sukhatme (Georgetown Law) examine this question. The article is forthcoming in Cornell Law Review and a draft is on SSRN. Here is the abstract:

Why do some venues evolve into litigation havens while others do not? Venues might compete for litigation for various reasons, such as enhancing their judges’ prestige and increasing revenues for the local bar. This competition is framed by the party that chooses the venue. Whether plaintiffs or defendants primarily choose venue is crucial because, we argue, the two scenarios are not symmetrical.

The Supreme Court’s recent decision in TC Heartland v. Kraft Foods illustrates this dynamic. There, the Court effectively shifted venue choice in many patent infringement cases from plaintiffs to corporate defendants. We use TC Heartland to empirically measure the impact of this shift using an event study, which measures how the stock market reacted to the decision. We find that likely targets of “patent trolls”— entities that own and assert patented inventions but do not otherwise use them—saw their company valuations increase the most due to TC Heartland. This effect is particularly pronounced for Delaware-incorporated firms. Our results match litigation trends since TC Heartland, as new cases have dramatically shifted to the District of Delaware from the Eastern District of Texas, previously the most popular venue for infringement actions.

Why do investors believe Delaware will do better than Texas in curbing patent troll litigation? Unlike Texas, Delaware’s economy depends on attracting large businesses that pay high incorporation fees; it is thus less likely to encourage disruptive litigation and jeopardize its privileged position in corporate law. More broadly, we explain why giving defendants more control over venue can counterbalance judges’ incentives to increase their influence by encouraging excessive litigation. Drawing on Delaware’s approach to corporate litigation and bankruptcy proceedings, we argue that Delaware will compete for patent litigation through an expert judiciary and well- developed case law that balances both patentee and defendant interests.

As I discuss below, I have a like/dislike reaction to this paper.

What happened in patent law in the past year?

Last Thursday I gave a 25-min recap patent law update to judges and practitioners at the Northern District Practice Program Patent Law Symposium, and I thought blog readers might be interested in my recap of highlights from the past year:

Patent Case Filings and Procedure: Venue, PTAB, and Stays

Lex Machina reports that there were 4057 cases filed in 2017, down 10% from the 4529 in 2016. The biggest procedural change was to venue. As I have explained, in its May 2017 decision in TC Heartland, the Supreme Court held that for purposes of the patent venue statute, a corporation only "resides" in its state of incorporation. The Federal Circuit has since held that this was a change in law, so the venue defense was not "available" under FRCP 12(g)(2), allowing district courts in pending cases to consider venue arguments that were not previously raised by defendants. And the Federal Circuit has offered guidance on the other possibility for proper venue—"where the defendant has committed acts of infringement and has a regular and established place of business"—saying that this requires (1) a fixed, physical presence that (2) is regular and established (not transient) and that (3) is a place of the defendant (not merely of an employee).

TC Heartland is likely responsible for the decline in cases filed in E.D. Tex. and the uptick in districts like D. Del. and N.D. Cal., though in neither of the latter have filings reached pre-2015 levels:

Decoding the Patent Venue Statute

Last Friday, Colleen Chien and I published an op-ed in the Washington Post arguing that the courts and/or Congress should take a hard look at venue provisions. It was a fun and challenging project, because we worked hard to delineate where we agreed and where we disagreed. One area where we weren't sure if we disagreed or not was whether the 2011 amendment to the general venue provisions should affect patent venue.

This is a thorny statutory interpretation issue, and because we didn't have space to discuss it in the op-ed (nor did we agree on all the details), I thought I would lay out my view of the issues here. My views don't speak for Colleen. Further, while my views fall on one side, they do so based solely on statutory interpretation. I don't have a horse in the policy race other than to say that it's important, it's complicated, and it should be considered.

Here is my tracing of the history:

Long Term Trends in IP Litigation

Matthew Sag has posted IP Litigation in United States District Courts: 1994 to 2014 (forthcoming Iowa L. Rev.) on SSRN. The article takes a thirty year look at IP litigation in the district courts:

This article undertakes a broad-based empirical review of Intellectual Property (IP) litigation in United States 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 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.

This 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, these are summarized below. Just as importantly, one of the key contributions of this article is that it frames the context for more fine-grained empirical studies in the future. Many of the results and conclusions herein demonstrate the dangers of basing empirical conclusions on narrow slices of data from selected regions or selected time periods.

Some of the key findings of this study are as follows:
First, the rise of Internet file-sharing 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.

Second, 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.

Third, 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. However, 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.

It's a well-developed abstract, so I don't have a lot to add on the coverage. I do have a few thoughts after the jump.

Patent Forum Selling

Two papers have been posted this fall related to the negative effects of courts consciously encouraging litigants to file cases in their districts, such as E.D. Tex. and D. Del. with patent cases—one by Jonas Anderson, and another by Daniel Klerman and Greg Reilly. I recommend both; they're the most interesting discussions of venue in the patent context that I've seen since Jeanne Fromer's Patentography.

Jeanne Fromer: Patentography

Would stricter venue rules improve patent law? In Patentography (NYU L. Rev. 2010), Professor Jeanne Fromer (Fordham Law) argues that considering the "geography of patent disputes" by "making patent venue proper only in the district in which the principal place of business of any of a case's defendants is located" would help resolve complaints of (1) forum shopping, (2) poor district court performance in patent litigation, and (3) insufficient deference by the Federal Circuit. Her basic insight is that this venue restriction "will lead to a concentration of an industry's patent suits in the districts where that industry's firms are densest," so that most pharma suits will be in D.N.J., while software suits will be in N.D. Cal., D. Mass., and W.D. Wash.—and she argues that this industry-specific specialization by generalist courts would produce more reasoned opinions than specialized patent trial courts. I'm not sure that "patentography" is the clearest name for patent geography ("-graphy" refers to a writing or field, and patent attorney Mark Rosen made aborted efforts to define "patentography" along these lines), but Fromer presents an intriguing argument that taught me something new and made me rethink my views on specialized patent courts.