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http://ssrn.com/abstract=1736219
 
 

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An Economic Analysis of Patent Law's Inequitable Conduct Doctrine


Thomas F. Cotter


University of Minnesota Law School

January 6, 2011

Arizona Law Review, Vol. 53, 2011
Minnesota Legal Studies Research Paper No. 11-02

Abstract:     
In recent years, patent law’s inequitable conduct doctrine has attracted considerable attention from judges, legislators, patent lawyers, and commentators, culminating most recently in the Federal Circuit’s decision to revise certain aspects of the doctrine in its en banc decision in Therasense, Inc. v. Becton, Dickinson & Co. Building on the work of other scholars, this Article proposes an instrumental view of the doctrine as, ideally, a tool for inducing patent applicants to disclose the optimal quantity of information relating to the patentability of their inventions; it then presents a formal model of the applicant’s choices in deciding how much information to reveal. The model suggests, among other things, that even after Therasense the conditions that trigger a finding of inequitable conduct are at best only a rough proxy for the conditions that define optimal disclosure. The model also illuminates how, both pre- and post-Therasense, the doctrine poorly defines many of the variables affecting a rational applicant’s decisionmaking process, and thus potentially encourages risk-averse agents to overdisclose. Although the model neither confirms nor refutes critics’ claims that the doctrine routinely induces overdisclosure and excessive administrative costs, the model demonstrates how various reforms, including but not limited to those adopted in Therasense, can be expected to reduce these reputed consequences. Finally, however, the model suggests that the need for some type of inequitable conduct doctrine may be greater in a regime like that of the United States, which at present lacks an effective system for post-grant oppositions. Conversely, if the United States adopted a post-grant opposition system, the need for a robust inequitable conduct doctrine would decline.

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Date posted: January 10, 2011 ; Last revised: June 20, 2011

Suggested Citation

Cotter, Thomas F., An Economic Analysis of Patent Law's Inequitable Conduct Doctrine (January 6, 2011). Arizona Law Review, Vol. 53, 2011; Minnesota Legal Studies Research Paper No. 11-02. Available at SSRN: http://ssrn.com/abstract=1736219

Contact Information

Thomas F. Cotter (Contact Author)
University of Minnesota Law School ( email )
229 19th Avenue South
Minneapolis, MN 55455
United States
612-624-7527 (Phone)
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