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Scaling the Patent System


Christina Mulligan


Brooklyn Law School

Timothy B. Lee


Cato Institute

March 6, 2012

NYU Annual Survey of American Law, Vol. 68, p. 289, 2012

Abstract:     
Why do firms in some industries ignore patents when developing new products? This paper posits a simple but novel answer to this long-puzzling question: firms ignore patents because they are unable to discover the patents their activities might infringe. The costs of finding relevant patents, which we call discovery costs, are prohibitively high.

Not all industries face high patent discovery costs. Chemical patents are "indexable," meaning that relevant patents can be efficiently retrieved by chemical formula. As a result, discovery costs in the chemical and pharmaceutical industries are low, and inadvertent infringement by firms in these industries is rare. But many other patent categories are not indexable, and in some cases that makes avoiding infringement practically impossible. In software, for example, patent clearance by all firms would require many times more hours of legal research than all patent lawyers in the United States can bill in a year. The result has been an explosion of patent litigation.

This paper attacks two core premises of patent law — that parties are always able to respect each other’s patent rights, and that firms should be punished for infringement even if they could not have avoided it. It concludes with several suggestions for how to change the patent system to alleviate the problems created by non-indexable patents.

Number of Pages in PDF File: 28

Keywords: patent, patent infringement, patents, intellectual property, intellectual property infringement, big-O notation, scalability, Hayek

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Date posted: March 7, 2012 ; Last revised: July 16, 2014

Suggested Citation

Mulligan, Christina and Lee, Timothy B., Scaling the Patent System (March 6, 2012). NYU Annual Survey of American Law, Vol. 68, p. 289, 2012. Available at SSRN: http://ssrn.com/abstract=2016968

Contact Information

Christina Mulligan (Contact Author)
Brooklyn Law School ( email )
250 Joralemon Street
Brooklyn, NY 11201
United States
Timothy B. Lee
Cato Institute ( email )
1000 Massachusetts Avenue, N.W.
Washington, DC 20001-5403
United States
HOME PAGE: http://www.cato.org/people/timothy-lee
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