Have you ever searched for a product on Amazon, only to find a similar item from another company? Sure you have. But while this search behavior is arguably great for customers, it's the reasoning behind a trademark lawsuit against the online retailer. "Military" watchmaker MTM has been pursuing Amazon since 2011 and, despite losing in a California federal court, it's just won a 2-1 vote in the 9th U.S. Circuit Court of Appeals to have the case go to trial.