Gray Manufacturing Company, Inc., is owned by family in St. Joseph, Missouri, specializing in manufacturing and selling portable lifting equipment for use by professional mechanics, announced today that it has resolved its patent infringement lawsuit filed on February 29, 2012, against ARS Global Guiding, Inc., of Pasadena California, Maxima USA, of Pasadena, California and the Chinese companies of Yantai Maxima Automobile Repair Equipment Manufacture Co., Ltd., Yantai Bantam Automobile Test & Repair Equipment Manufacture Co., Ltd., and MIT Group / Maxima.