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Full-Text Articles in Law

The Private Costs Of Patent Litigation, James Bessen, Michael J. Meurer Oct 2012

The Private Costs Of Patent Litigation, James Bessen, Michael J. Meurer

Faculty Scholarship

This paper estimates the total cost of patent litigation to alleged infringers. We use a large sample of stock market event studies around the date of lawsuit filings for US public firms from 1984-99. We find that the total costs of litigation are much greater than legal fees and costs are large even for lawsuits that settle. Lawsuits cost alleged infringers about $28.7 million ($92) in the mean and $2.9 million in the median. Moreover, infringement risk rose sharply during the late 1990s to over 14% of R&D spending. Small firms have lower risk relative to R&D.


A Generation Of Software Patents, James Bessen Jul 2012

A Generation Of Software Patents, James Bessen

Faculty Scholarship

This report examines changes in the patenting behavior of the software industry since the 1990s. It finds that most software firms still do not patent, most software patents are obtained by a few large firms in the software industry or in other industries, and the risk of litigation from software patents continues to increase dramatically. Given these findings, it is hard to conclude that software patents have provided a net social benefit in the software industry.


The Private And Social Costs Of Patent Trolls, Michael J. Meurer, James Bessen, Jennifer Ford Jan 2012

The Private And Social Costs Of Patent Trolls, Michael J. Meurer, James Bessen, Jennifer Ford

Faculty Scholarship

The emergence of nonpracticing entities (NPEs) — firms that purchase and hold patent rights but neither innovate themselves nor use the patents in the production of goods — is supposed to incentivize innovation by providing a ready market for innovators. We test this idea empirically and find that NPEs produce little returns for innovators or for their own shareholders, but they place significant costs on productive firms that violate patents inadvertently. Indeed, it appears that NPEs — often disparagingly called “patent trolls” — discourage productive firms from innovating for fear that they will then be subject to a patent troll …