Marshall, Gerstein & Borun LLP is a law firm founded in 1955 that practices exclusively in intellectual property law, including patents, litigation, trademarks and copyrights, from offices in Chicago and Raleigh.
Marshall, Gerstein & Borun LLP is a law firm devoted exclusively to intellectual property law. Founded in 1955, the firm marked 70 years of IP practice in 2025 and operates from offices in Chicago, Illinois, and Raleigh, North Carolina. Its client base includes large innovative businesses, research institutions, universities, and entrepreneurs.
The practice spans patent prosecution, IP litigation, post-grant proceedings before patent offices, and trademark and copyright work. The firm describes its singular focus on IP as a means of improving efficiency and enabling creative decision-making, and its lawyers combine legal expertise with scientific and technical training. It has drawn recognition from legal publications and professional organizations.
The firm states that its culture rests on cultivating trust, communicating clearly, and delivering effective solutions, with an emphasis on collaboration and responsiveness. It also reports commitments to diversity and inclusion, pro bono work, and community outreach.