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By Jeff Ginsberg and Ryan J. Sheehan
November 01, 2024

Federal Circuit: Falsely Claiming That a Product Feature is Patented Can Give Rise to a False Advertising Claim Under the Lanham Act

Section 43(a)(1)(B) of the Lanham Act provides a cause of action based on false advertising when, "in commercial advertising or promotion, [the defendant] misrepresents the nature, characteristics, qualities, or geographic origin of his or her or another person's goods, services, or commercial activities." 15 U.S.C. §1125(a)(1)(B). In Crocs, Inc. v. Effervescent, Inc., the Federal Circuit considered whether such a cause of action exists when a party falsely claims that a feature of its product is patented. See, No. 2022-2160, 2024 WL 4376134, at *1-2 (Fed. Cir. Oct. 3, 2024). The court found that it does.

In particular, the website of counterclaim-defendant Crocs, Inc. (Crocs) was alleged to have falsely described "Croslite" material used in Crocs footwear products as "patented," "proprietary," and "exclusive." Id. at *1. Crocs moved for summary judgment, arguing that this claim was "legally barred" by two prior decisions, Dastar Corp. v. Twentieth Century Fox Film Corp., 539 U.S. 23 (2003), and Baden Sports, Inc. v. Molten USA, Inc., 556 F.3d 1300 (Fed. Cir. 2009). The district court agreed and granted Crocs's motion, holding that "the terms 'patented,' 'proprietary,' and 'exclusive' were claims of 'inventorship'" akin to a "false designation of authorship" (as in Dastar and Molten), not misrepresentations as to "the nature, characteristics, or qualities of Crocs' products" (as required by the Lanham Act). See, id.

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