Retail giant Costco Wholesale (COST) is known as a place to buy products in bulk, such as 30 rolls of toilet paper or a 40-pound tub of sugar. Less known as a source for diamond engagement rings, ...

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 ...

Tiffany & Co. and Costco Wholesale Corp. have finally reached a settlement agreement over the jewelry store's eight-year lawsuit accusing Costco of trademark infringement and counterfeiting for ...

Costco customers were dismayed to find out that the only place to purchase a Tiffany engagement ring is Tiffany & Co. The wholesaler was selling a six-pronged diamond ring called “The Tiffany” and was ...