Our Team Members

Jessica Tyrus Mackay


Jessica specializes in patent litigation and counseling, with specific experience representing plaintiffs and defendants in all facets of patent litigation and consultation arising under the Hatch‐Waxman Act, from initial opinions through trial and appeal.

Jessica has served as trial counsel in patent infringement litigation arising in the U.S. federal district courts and as appellate counsel before the Federal Circuit. She also has experience in advising clients on freedom‐to‐operate, due diligence, trademark, and trade dress issues, and she has represented patentees before the Patent Trial and Appeal Board in inter partes review proceedings.

Prior to joining Green Griffith, Jessica was an Associate at Leydig, Voit & Mayer, Ltd. She also served as a judicial extern to the Honorable Martin C. Ashman, United States Magistrate Judge for the Northern District of Illinois and worked as an undergraduate laboratory intern at Argonne National Laboratory.


Chicago‐Kent College of Law, J.D., with high honors
       Chicago‐Kent Law Review
, Notes and Comments Editor
       Chicago‐Kent Journal of Intellectual Property, Associate Editor
       Order of the Coif, Member
       Moot Court Honor Society
Benedictine University, B.S., Chemistry, summa cum laude

Professional Affiliations

Court Admissions


Representative Matters