Nexsen Pruet is a Greenville-based general practice firm with eight offices across the Carolinas. A team of 18 attorneys at the firm handle various degrees of intellectual property work, representing clients in both contentious and non-contentious patent, trademark and copyright matters. Recently, William Klett was an expert witness in a tobacco trademark case that settled before going to trial. He has also been involved in an economic espionage case involving a former employee of a client who stole company trade secrets. Among firms based in South Carolina, Nexsen Pruet stands out in terms of its attorneys' expertise preparing and prosecuting patent applications both domestically and abroad. John Hardaway has more than 35 years of experience in IP and is widely regarded as one of the preeminent IP practitioners in South Carolina. Michael Mann, who practices out of the firm's Columbia, South Carolina office, is an experienced patent litigator who has appeared before the USPTO in PTAB proceedings on numerous occasions on behalf of clients.