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Taking the Confusion Out of 'Likelihood of Confusion': Toward a More Sensible Approach to Trademark Infringement

Robert G. Bone

University of Texas School of Law

March 22, 2012

Northwestern University Law Review, Vol. 106, 2012
U of Texas Law, Public Law Research Paper No. 214

This Article critically examines the core infringement standard for trademark law — the likelihood-of-confusion test — which imposes liability if an appreciable number of consumers are likely to be confused by the defendant’s use of its mark. The test is a mess. It produces bad results, is doctrinally incoherent, and lacks a sensible normative foundation. It chills socially valuable uses and facilitates excessively broad expansions of trademark law, and it includes factors that make no sense as predictors of likely confusion. Most importantly, the test erroneously assumes that consumer confusion is enough for liability without regard to harmful consequences or the moral wrongfulness of the defendant’s conduct. This Article diagnoses these problems and proposes a set of promising reforms. It begins by presenting a systematic history of the test’s origins. The likelihood of confusion test emerged in the early 1960s as a compromise between conflicting views about the proper scope of protection against noncompeting uses, a compromise that papered over the conflict without resolving the underlying normative disagreement. The result is a test without a secure normative foundation that is still plagued by the conflicts and disagreements that gave it birth. The test’s history also suggests a promising avenue for reform. To improve the infringement standard, one must start at the normative level and work from a coherent theory of trademark law’s goals. This Article distinguishes between moral and economic goals and fits infringement standards to the most plausible justifications for protecting marks. In those cases involving a moral wrong, such as intentional deception, moral principles should shape the test. In those cases where the economic goals of trademark law are paramount, the test should focus not only on the probability of confusion, but also on the trademark-related harm that confusion generates.

Number of Pages in PDF File: 88

Keywords: K00, K19, K29

JEL Classification: trademark law, likelihood of confusion, infringement, trademark history, trademark policy, economics

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Date posted: March 30, 2012  

Suggested Citation

Bone, Robert G., Taking the Confusion Out of 'Likelihood of Confusion': Toward a More Sensible Approach to Trademark Infringement (March 22, 2012). Northwestern University Law Review, Vol. 106, 2012; U of Texas Law, Public Law Research Paper No. 214. Available at SSRN: http://ssrn.com/abstract=2027529

Contact Information

Robert G. Bone (Contact Author)
University of Texas School of Law ( email )
727 East Dean Keeton Street
Austin, TX 78705
United States
512-232-5562 (Phone)
512-471-6988 (Fax)

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