Holland & Knight

An AmLaw 100 firm, Holland & Knight LLP is a large, full-service, BigLaw firm headquartered in Tampa, Florida. With approximately 2,200 attorneys and professionals across 35 offices in the U.S. and abroad, the firm maintains a significant national and international footprint. In 2025, The American Lawyer ranked Holland & Knight 26th in the nation by gross revenue. The firm's intellectual property group is also ranked by Chambers and Partners, which notes its focus on patent litigation across a range of technology areas.

Holland & Knight's patent litigation practice handles a broad spectrum of technologies, including software, telecommunications, semiconductors, medical devices, and consumer products. The firm's website and attorney biographies indicate experience in high-stakes litigation in well-known patent venues such as the Eastern and Western Districts of Texas and the District of Delaware. The firm's technical depth is supported by litigators with degrees in electrical engineering, aerospace engineering, and other technical fields.

The firm represents both patent holders and accused infringers. While the provided data includes a plaintiff-side representation for ContentNexus LLC, the firm's broader practice includes significant defense work, such as defending retailers and their supply chains against non-practicing entities (NPEs). Notable public outcomes include securing a complete plaintiff's jury verdict with findings of willfulness, trebled damages, and a full attorney's fees award for manufacturing client Meyer Corp. Another matter resulted in a jury verdict of non-infringement and invalidity for a telecommunications client in the Eastern District of Texas. The firm also has experience before the U.S. Court of Appeals for the Federal Circuit.

Holland & Knight maintains a notable Patent Trial and Appeal Board (PTAB) practice, handling inter partes review (IPR) proceedings for petitioners and patent owners. The firm has strategically expanded this practice, adding a team with significant PTAB and International Trade Commission (ITC) experience. Partner Amy Simpson has been lead counsel on more than 50 IPRs and has been recognized as a top-performing attorney representing patent owners before the PTAB. Key partners in the patent litigation practice include R. David Donoghue, who leads the firm's national Intellectual Property Practice Group, and trial attorneys like Justin S. Cohen, who has been recognized by the IAM Patent 1000 guide.