He has successfully tried both jury and non-jury cases in a number of federal and state courts and regulatory agencies. He has argued more than 25 cases in federal appellate courts in several judicial circuits, as well as a number of others in state appellate courts, and he has participated in controversies before the U.S. Supreme Court. A former Assistant U.S. Attorney, Mr. Ohly concentrates his practice in complex business litigation. He has served as lead counsel in intellectual property lawsuits, including Hatch-Waxman generic pharmaceutical litigation, and has recently focused on patent litigation over biosimilar therapeutic and diagnostic products. He has also served as lead trial counsel in cases involving trademarks, securities regulation, shareholder and partnership derivative actions, accounting malpractice, tax, white collar criminal charges, international issues and other corporate and commercial disputes.