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 …