Mexicos trademark body said on Thursday it had ruled in favor of local telecoms company iFone in a dispute over the marketing of iPhone services, opening the door to potential damage claims against the countrys biggest mobile providers. Apple Inc, maker of iPhone smartphones, was not affected by the ruling by the Mexican Institute for Industrial Property (IMPI) against America Movil, Telefonica and Iusacell for advertising mobile phone subscriber plans with the name iPhone in the title. Its because a brand registered for products was being used for services, said a spokesman for the IMPI, which is part of Mexicos Economy Ministry.