FacultyFaculty/Author Profile
Marc A. Cohn

Marc A. Cohn

Arnold & Porter LLP

Washington, DC, USA

Marc A. Cohn

Marc Cohn is Counsel in the firm's intellectual property practice group. He concentrates his practice on medical device litigation and arbitration, including patent infringement, contract, license, and business tort cases. He has litigated throughout the US, including in New York, California, Maryland, Massachusetts, Delaware, Wisconsin, Minnesota, Illinois, Indiana, Texas, Washington, and Nebraska. Mr. Cohn also has experience filing patent review proceedings in the U.S. Patent Office, including proceedings co-pending with related litigations.

With nearly 15 years of experience in medical device practice, Mr. Cohn has become deeply familiar with the unique market dynamics and regulatory schemes affecting medical device manufacturers and distributors, including the role of reimbursement and the Food and Drug Administration in bringing medical devices to market.

Mr. Cohn's medical device experience includes cardiac stents, drug-eluting stents, and catheters, women's health, including oncology treatment catheters, uterine fibroid removal devices, and diagnostic kits, electronic tissue stimulators, magnetic resonance imaging and medical ultrasound.

He also has experience in other technologies, including: business methods via website portals, temperature sensing equipment, telecommunications equipment and systems, commercial lawn mowers, and diapers.

Representative Matters

  • Inflow v. Boston Scientific. Complete defense victory against a claim for US$105 million for patent infringement relating to coronary stents.
  • GE Healthcare v. ABI. Complete plaintiff's victory in an arbitration involving the interpretation of a license agreement.
  • Boston Scientific v. Cook/Guidant. The court granted Boston Scientific's motion for summary judgment and entered a permanent injunction barring Cook and Guidant from collaborating to exploit licensed technology in the multi-billion dollar drug-eluting stent market.
  • Boston Scientific v. Medtronic. Won judgment for Boston Scientific in excess of US$160 million and secured permanent injunction against future infringing sales of coronary stent systems.
  • Kimberly-Clark v. Procter & Gamble. Represented Procter & Gamble in the "diaper wars" arbitration in defense of a patent infringement claim against Pampers diapers. The arbitration panel found the patent-at-issue invalid, and the panel's opinion was upheld on appeal.
  • Freedom Wireless, Inc. v. Verizon Wireless. In multi-defendant suit re telecommunications systems, represented only victorious defendant.

Practice Areas

Intellectual Property


JD, University of Virginia School of Law, 2000
BS in Applied and Engineering Physics, cum laude, Cornell University, 1997


District of Columbia
US Court of Appeals for the First Circuit
US Court of Appeals for the Seventh Circuit


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