Lululemon vs. Costco: Law Suit Over “Dupes,” Design Patent, and IP Integrity
The Spandex War. Lululemon Athletica has filed a high-profile intellectual property lawsuit against Costco Wholesale Corporation, claiming that the retail giant’s Kirkland Signature line and other in-store apparel offerings include “knockoffs” or “dupes” of Lululemon’s signature designs. This case pits a premium athletic wear innovator against a cost-conscious retailer—and could shape the future of fashion-focused IP enforcement. Spandex War: Trade Dress, Design Patents, and Trademarks in Focus You might think of this as the Spandex…
