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Marc A. Cavan

Direct: (312) 638-8786
Fax: (312) 638-8793

Marc Cavan is an experienced patent litigator. Marc has been lead counsel to innovative clients in the life sciences, technology, and consumer product industries and has successfully handled patent cases in federal courts throughout the United States. Marc’s experience includes jury trials, ANDA Hatch-Waxman litigation, arbitrations, and proceedings before the Patent Trial and Appeal Board (PTAB). Marc is registered as a patent attorney with the U.S. Patent & Trademark Office, and Marc’s client base has spanned small start-ups, academic medical centers, private and public companies, and leading multinationals. Marc is also experienced with trade secret and commercial litigation, licensing, and risk management, and has advised on intellectual property issues for significant transactions, including mergers and private equity investments.

Marc’s litigation and counseling expertise has included a range of technologies, including medical products, surgical instruments and procedures, pharmaceuticals including both small molecules and biologics, electronic health records, health care technology, nanotechnology, software, wireless and internet technology, automotive components, energy, and consumer products.

Client feedback has earned Marc recognition as a leading lawyer in Chambers USA, International Asset Management, and SuperLawyers. Marc also co-chairs the Patent Law Institute’s Patent Boot Camp, presenting on strategic patenting issues, and Marc is a member of the Trial Bar for the U.S. District Court for the Northern District of Illinois.

Marc graduated with honors from Harvard Law School, where he taught legal writing as a member of the Board of Student Advisers and served on the editorial board of the Harvard Journal of Law and Technology. Marc graduated magna cum laude and Phi Beta Kappa from Duke University with a B.S. in Biology. After graduating from Duke, Marc taught as an Annenberg Fellow as a master at Eton College in Windsor, England.

Practice Areas:

Intellectual Property

  • Collaboration Agreements
  • Intellectual Property Issues of Corporate Transactions
  • Patent Litigation
  • Trade Secret Litigation

Commercial/Business Litigation

  • Contract Litigation
  • Employment Disputes

Commercial Transactions

  • Collaboration Agreements
  • Intellectual Property Issues of Corporate Transactions
  • Licensing

Cross Discipline Practices

  • Alternative Dispute Resolution
  • Appeals
  • E-Discovery
  • Trials, Arbitrations and Administrative Hearings


  • Harvard Law School, J.D., 1998, cum laude
    - Board of Student Advisers; Harvard Journal of Law & Technology
  • Duke University, B.S. (Biology), 1994, magna cum laude
    - Phi Beta Kappa
    - Chief Student Marshal (1 of 4 for the Class of 1994)

Legal Experience

  • Harrison Law LLC
    – Chair, Intellectual Property, 2018-
  • Baker McKenzie LLP
    – Partner, 2015-2018
  • Ropes & Gray LLP
    – Partner, 2011-2015
  • Sidley Austin LLP
    – Partner, 2006-2011
    – Associate, 1998-2006


  • Co-Chair, PLI Patent Boot Camp, 2016-2018
  • “A Trial Lawyer’s Perspective on Patent Prosecution,” PLI, May 2016-2018
  • Faculty, PLI Patent Boot Camp, 2012-2016
  • Faculty, “Strategic Considerations in IPR/CBM,” Midwest IP Summit, No. 2014
  • Faculty, “IPRs in Pharmaceutical Cases, “American Conference Institute Paragraph IV Master Symposium, Sept. 2014
  • Faculty, “Medical Device Damages,” American Conference Institute Advanced Summit, March 2014
  • Panelist, “Ethics,” Chicago Law Bulletin, Feb. 2013


  • “FDA Labeling Guidance,” Healthcare Newsletter, May 2016
  • “Reverse Patent Trolls:  A New Strategy Unfolds,” Bloomberg BNA, May 2015
  • “New Players on the Patent Chess Board,” Life Sciences IP Review, May 2015
  • “Section 101 Challenges in CBM Petitions,” Bloomberg BNA, January 2015

Bar Admissions

  • U.S. Patent & Trademark Office, 2002
  • U.S. Court of Appeals, Federal Circuit, 2002
  • U.S. District Court, N.D. of Illinois, 2001
  • U.S. District Court, N.D. of Illinois, Trial Bar, 2010
  • U.S. District Court, E.D. of Wisconsin, 2009
  • Illinois, 1998