Analyzing the Lululemon v. Costco Dupe Suit (Guest Blog Post)
Eric Goldman
JULY 9, 2025
But the rise in dupes has brought a corresponding rise in dupe lawsuits, or at least lawsuits that offer up defendants’ or consumers’ use of the term “dupe” as evidence of confusing similarity or intent to deceive. 2015) (rejecting a patentee’s attempt to do that). The most recent of those is Lululemon’s suit against Costco.
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