Mountain View, Calif. -- The U.S. Court of Appeals has reinstated a trademark infringement lawsuit filed in 2009 by Virginia-based Rosetta Stone, a provider of language learning software and online services, against Internet search giant Google. The suit, which seeks to prevent the Mountain View-based company from letting third parties -- including counterfeiters -- use Rosetta Stone's trademarks in ads, had been dismissed two years ago by a federal court in Virginia. The latest ruling by the U.S. Court of Appeals for the Fourth Circuit now clears the way for the suit to proceed. "Rosetta Stone is deeply concerned about trademark infringement, including the rampant problem of online counterfeiters engaging in theft of intellectual property and confusing consumers regarding the products being offered for sale," the company said in a statement. "We look forward to further proceedings in this matter."