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http://ssrn.com/abstract=1604845
 
 

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Owning Mark(et)s


Mark A. Lemley


Stanford Law School

Mark P. McKenna


Notre Dame Law School

May 12, 2010

Michigan Law Review, Vol. 109, p. 137, November 2010

Abstract:     
Trademark owners regularly rely on claims that the defendant is “free riding” on their mark by making money using that mark, foreclosing an opportunity for the trademark owner to capture that revenue. We analyze those free riding claims and find them wanting. The empirical data shows that defendants in unrelated markets can benefit from using a well‐known mark, but that neither mark owners nor consumers suffer any injury from that use. A legal claim that a defendant is unjustly benefiting by using a plaintiff’s mark is hollow unless it is accompanied by a theory of why that benefit should rightly belong to the plaintiff. And unlike real property, or even other types of intellectual property, trademark law has no such theory. The result is that free riding claims fall back on empty circularity. Those free riding arguments are - explicitly or implicitly - behind the most problematic expansions of trademark law in recent years. We suggest that trademark law needs a theory of trademark injury that distinguishes harm to legitimate interests the law should protect from a mere desire to capture a benefit enjoyed by another.

Number of Pages in PDF File: 54

Keywords: intellectual property, trademark, free riding, confusion, sponsorship, advertising, antitrust injury

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Date posted: May 12, 2010 ; Last revised: September 17, 2010

Suggested Citation

Lemley, Mark A. and McKenna, Mark P., Owning Mark(et)s (May 12, 2010). Michigan Law Review, Vol. 109, p. 137, November 2010. Available at SSRN: http://ssrn.com/abstract=1604845

Contact Information

Mark A. Lemley (Contact Author)
Stanford Law School ( email )
559 Nathan Abbott Way
Stanford, CA 94305-8610
United States
Mark P. McKenna
Notre Dame Law School ( email )
P.O. Box 780
Notre Dame, IN 46556-0780
United States
(574) 631-9258 (Phone)
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