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Intellectual Property Litigation

Morrison & Foerster's litigation practice covers all aspects of intellectual property disputes, from complex patent litigation to trademark and interference matters before the U.S. Patent and Trademark Office. Our clients benefit from one of the largest and best respected patent groups in the world, with nearly 350 attorneys, two-thirds of whom are litigators.

Clients rely on our deep and talented pool of litigators, including a number of the most accomplished trial attorneys in the U.S. The size and experience of our litigation team has provided us with expertise in a variety of venues, including all of the district courts that handle high volumes of patent litigation, the U.S. International Trade Commission, and the U.S. Court of Appeals for the Federal Circuit. In fact, we were one of the most active in district court representations, ranking second among all law firms in a recent survey.

Our litigators represent clients in all types of trade practice claims under both federal and state laws:  trademark, service mark, and trade dress infringement; dilution; unfair competition; counterfeiting; cybersquatting; and unfair advertising cases. In addition, we have represented many clients in disputes involving infringing Internet domain names and cybersquatting through ICANN’s arbitration procedures. Our clients include both U.S. and non-U.S. concerns, including major corporations, new information technology and life sciences ventures, universities, and nonprofit research institutions.

Our team approach ensures that litigation clients whose cases include scientific or other complex issues benefit from the integration of our patent prosecution practice with our IP litigation practice.

Our intellectual property litigators have won scores of high-stakes cases involving disputes over key patents, trademarks, and other intellectual property for clients such as Bayer, Chiron, EchoStar, Novartis, and Pioneer. We also bring substantial expertise in fields such as biotechnology, chemical technology, communications, electronics, medical devices, pharmaceuticals, and software.

Our intellectual property litigators are known for their courtroom skills, their ability to analyze the key issues in a case and develop a novel solution for resolving or winning it, and their depth of experience in industries such as life sciences and information technology.

Most recently, our IP litigation practice was recognized as the 2013 Chambers USA Intellectual Property Firm of the Year and a 2012 Law360 Practice Group of the Year.

Law 360 - IP Practice Group of the Year
IP Practice Group of the Year


Chambers USA Winner 2013 - IP Firm of the Year
IP Firm of the Year


BTI Litigation Outlook
BTI Litigation Outlook
“IP VIP” (2015)
“IP Litigation Powerhouse” (2014)


MoFo was named Firm of the Year: Patent Prosecution by LMG Life Sciences 2013