Erin J. Fox, Partner


Erin Fox oversees U.S. and foreign patent prosecution and coordinates with foreign associates to best protect her clients’ rights globally. Erin has drafted and prosecuted hundreds of patent applications in the mechanical, electro-mechanical, business method, software, medical device, and design arts. Erin’s patent prosecution experience includes all stages of prosecution, including appeals, inter partes reviews and reexaminations, and ex parte reexaminations. Erin has also filed numerous copyrights and assisted clients in strategic branding, including the selection and clearance of trademarks and the prosecution of U.S. and foreign trademarks.

Erin assists clients in patentability analyses, patent and trademark infringement assessments, due diligence investigations related to validity and/or enforcement, and she guides clients and their research and development teams in design-around efforts. She also works with clients to understand their technologies and intellectual property portfolios to determine and advise on strategies for prosecution, licensing, and acquisition. Erin also works with in-house counsel and research and development teams to train and advise on best practices for protecting intellectual property assets.

Erin not only helps her clients protect their intellectual property assets, but she also aids them in enforcing and asserting their intellectual property rights. Erin drafts patent, trademark, and copyright cease and desist letters to help keep her clients out of complex litigation. When litigation is unavoidable, Erin has successfully assisted clients in both defense against and assertion of claims of patent and trademark infringement.

Legal Services

Education and Honors

  • John Marshall Law School (J.D., 2006)
    • Certificate in Intellectual Property
    • Review of Intellectual Property Law (Staff Editor)
  • University of Illinois at Urbana-Champaign (B.S., 1998)
    • Degree: Mechanical Engineering
    • Society of Women Engineers (Member)

Bar Admissions

  • Illinois

Court Admissions

  • U.S. Patent and Trademark Office
  • U.S. District Court, Northern District of Illinois

Professional and Civic Activities

  • Intellectual Property Law Association of Chicago (Member; CLE Committee, Chair; Board of Managers, Treasurer)
  • Chicago Bar Association (Member; Alliance for Women Committee)
  • American Bar Association (Member)
  • Alliance of Local Service Organizations (Former Board Member)
  • Step Up Women's Network (Member)
  • Daniel Murphy Scholarship Fund (Volunteer and Mentor)

Professional Recognition

  • Selected for inclusion in Illinois Super Lawyers®–Rising Stars Edition (2014–2016: Intellectual Property)