Nathan Mammen has broad experience in intellectual property trial and appellate litigation. He frequently leads teams in “bet-the-company” complex intellectual property matters and has tried cases across the country. He has experience in diverse technologies such as agricultural equipment and digital agriculture technology, medical devices, radio-frequency identification, wireless communication, semiconductors, biotechnology, pharmaceuticals, and mechanical devices.
He has represented clients at all levels, from trial court or administrative boards through appeals, including at the United States Supreme Court. He has argued in numerous courts of appeals and has extensive experience in appeals before the U.S. Court of Appeals for the Federal Circuit.
Nathan is frequently involved in or consulted about matters before the Patent Trial and Appeal Board and U.S. Patent and Trademark Office. He worked as a patent examiner before and during law school.
Nathan is passionate about giving back through pro bono service, and he frequently represents his fellow veterans seeking benefits, including regularly handling appeals before the U.S. Court of Appeals for the Federal Circuit and bringing attention to systemic legal issues affecting veterans.
Nathan is a veteran of the U.S. Army. During his military service, he served as appellate counsel in dozens of military criminal cases. In 2012–2013, Nathan volunteered for active duty in support of Operation Enduring Freedom and served as a military prosecutor in Kuwait.
