UPDATE 1-U.S. top court denies Teva stay in Copaxone patent fight
April 18, 2014 at 16:28 PM EDT
WASHINGTON, April 18 (Reuters) - U.S. Supreme Court Chief Justice John Roberts on Friday denied a request by Teva Pharmaceutical Industries Ltd to stay a lower-court ruling in a patent case that favored the developers of generic versions of Teva's top-selling multiple sclerosis drug.