Mr. O'Brien joined Coughlin & Gerhart, LLP in 1980 and is a Partner in the firm. Mr. O’Brien’s 33 plus years of civil litigation experience includes intellectual property litigation, including patent, trademark, copyright and trade secret matters. Mr. O’Brien has been the lead counsel in a number of large business and intellectual property cases. His experience also includes commercial litigation and representation of plaintiffs in personal injury cases, defense work for insurance carriers and individuals and corporations. Mr. O’Brien has successfully prosecuted numerous lawsuits in the areas of intellectual property, business litigation, personal injury, wrongful death, products liability and medical malpractice.