Casey Kniser is a lead member of Patterson Thuente's litigation team. His practice is devoted to prosecuting patents before the U.S. Patent & Trademark Office and civil litigation involving all aspects of patent, trademark, and copyright law. Clients also rely on Casey for contractual matters involving the licensing and development of computer software and other intellectual property assets.

Casey's background includes serving as a Special Assistant U.S. Attorney,  prosecuting criminal cases in Federal Court. While serving in the U.S. Navy JAG Corps he acted as a prosecutor and defense counsel in courts-martial. Casey also served in the U.S. Navy Judge Advocate General Corps where he acted as a military trial counsel. In 1998, the Navy assigned him to the U.S. Attorney's Office, Norfolk Division in the Eastern District of Virginia where he spent his last year of military service as a federal prosecutor, representing the United States at both the trial and appellate levels. Prior to joining Patterson Thuente Casey was a litigation associate at another Minnesota law firm where his main practice areas were intellectual property, commercail and aviation litigation.