Antoinette M. Tease, P.L.L.C.

Antoinette M. Tease, P.L.L.C. is a nationally recognized intellectual property law firm dedicated to protecting innovation through strategic legal counsel and relentless advocacy. Ranked among the top ten solo patent firms in the country by Intellectual Property Today, the firm offers comprehensive services in patent prosecution, litigation, trademarks, copyrights, and trade secret matters. Known for precision, depth of knowledge, and ethical representation, Antoinette M. Tease, P.L.L.C., is Montana’s first and only full-service intellectual property law firm.

Antoinette M. Tease, P.L.L.C. is led by Antoinette M. Tease, a registered patent attorney with over two decades of experience representing individuals, businesses, and global clients. She has prosecuted more than 1,000 national and international patent applications and has successfully litigated hundreds of intellectual property disputes. Her role as an expert witness in complex patent infringement cases further underscores her authority in the field. Licensed in Montana, Wyoming, and New York, she maintains a wide international network to safeguard clients' rights around the globe.

Antoinette M. Tease, P.L.L.C. is deeply rooted in legal excellence and leadership. Antoinette M. Tease has served in numerous capacities within the American Bar Association’s Section of Intellectual Property Law, chaired the Montana State Bar’s IP Section, and currently holds the position of President-Elect of the State Bar of Montana. Her background includes prior roles at major law firms in Washington, D.C., and New York City, as well as serving as General Counsel to a technology company. She brings this elite legal pedigree and business insight to every client engagement.

Antoinette M. Tease, P.L.L.C. supports clients across industries, including software, medical devices, agriculture, oil and gas, and consumer products. Whether securing patent rights, defending against infringement claims, or managing global IP portfolios, the firm operates with absolute discretion, responsiveness, and strategic foresight.

Antoinette M. Tease, P.L.L.C. is committed to providing tailored, high-quality legal solutions that protect intellectual capital and foster long-term business success through ethical, informed, and effective representation.