Aronberg Goldgehn Davis & Garmisa added William L. Niro and Christopher W. Niro as members and Kristina D. Diesner as an associate.William Niro has experience representing Fortune 500 companies, midsize and family-owned businesses, start-up enterprises and individuals in business transactions and intellectual property matters, including securing patents, trademarks and copyrights.Christopher Niro focuses his practice on intellectual property litigation, prosecution and other business affairs, including brand management …