Nathan Cassell

Nathan Cassell is a seasoned intellectual property lawyer who focuses on protecting advanced technologies across medical, mechanical, chemical, and computer-based fields. His practice at Acuity IP, LLC, focuses on patent prosecution and intellectual property counseling for innovators developing complacex devices and methods. He advises clients from early development through commercialization, helping them secure strong patent rights and long-term value.

Nathan earned a B.S. in Biomedical Engineering from Northwestern University. He later received his J.D. from the University of Denver College of Law. He also completed graduate coursework in microbiology and continuing education coursework in bioinformatics, strengthening his ability to understand highly technical, data-driven inventions.

Nathan began his legal career at Townsend and Townsend and Crew in Palo Alto, where he practiced intellectual property law for several years. He later joined Kilpatrick Townsend and Stockton in Denver, serving clients at a premier international law firm. During this period, he built deep experience advising biomedical, biotechnology, medical device, and mechanical companies on patent strategy.

Nathan has helped companies navigate acquisitions, portfolio development, and enforcement matters. He has supported startups, privately held businesses, and Fortune 100 companies by protecting innovations in diagnostics, biosurgery, microfluidics, and therapeutic devices. His guidance has helped clients attract investment, complete successful acquisitions, and defend valuable intellectual property.

Nathan also provides opinion letters, patent portfolio evaluations, and due diligence reviews for organizations in the health care and engineering fields. He offers scientific and prosecution insight in dispute matters, including validity and infringement analysis. Through clear advice and careful strategy, he helps clients reduce risk while advancing innovation.

Nathan Cassell has a professional approach that emphasizes accuracy, clarity, and long-term planning. By combining legal expertise with strong technical knowledge, he supports meaningful technological progress and reliable patent protection for organizations that shape modern health care and engineering solutions. His work consistently focuses on practical results and durable intellectual property outcomes. This commitment benefits innovators, investors, and the broader technology community.

Law Office Affiliations

• Attorney, Acuity IP, LLC
• Member, Colorado Bar Association, Family Law Section
• Member, Jefferson County Bar Association
• Member, Metro Denver Interdisciplinary Committee

Licensed State

• Colorado

Education

• University of Denver College of Law
  Juris Doctor (JD)
• Northwestern University
  BS in Biomedical Engineering

Awards & Badges