Tiffany (NJ) Inc. v. eBay Inc. 600 F.3d 93 (2nd Cir. 2010), is a United States Court of Appeals for the Second Circuit case in which plaintiff Tiffany & Co. filed the complaint, first in 2004, alleging that eBay constituted direct and contributory trademark infringement, trademark dilution, and false advertising since it facilitated and advertised counterfeit Tiffany jewelries on its online market. On July 14, 2008, the District Court for S. D. N. Y. decided in favor of eBay on all claims. Tiffany appealed these decisions to the Second Circuit. The court affirmed the judgment of the district court with respect to the claims of trademark infringement and dilution. The false advertising claim was returned to the district court for further processing, which was then ruled in favor of eBay.