Items such as Aspirin and Thermos are so common that most people use the name to refer to the product, not the brand. That’s how trademark protections are lost and that’s why corporate America defends ...

A federal judge ordered a “deceptive” Costco to pay Tiffany & Co. a whopping $19.4 million for misleading consumers into thinking they could buy legit Tiffany bling at warehouse club prices. The award ...

A Manhattan federal judge ruled warehouse retailer Costco Wholesale Corp. must pay Tiffany & Co. more than $19 million for selling what it marketed as "Tiffany" engagement rings. The ruling stems from ...

Costco had been accused of trademark infringement and counterfeiting in a lawsuit for using the "Tiffany" name in selling of diamond engagement rings.

Costco must pay the storied jewelry company Tiffany & Co. more than $19 million for selling about 2,500 diamond rings falsely identified on store signs as “Tiffany” rings, a federal judge ruled Monday ...