676 N. Michigan Ave.
Suite 3900
Chicago, IL 60611

+312 883 8008


United States

Practice areas:

General Patent Litigation
Hatch-Waxman Patent Litigation

Chris is a founding partner of Green, Griffith & Borg-Breen LLP. A seasoned IP trial lawyer with over 30 years of experience in IP law, his practice concentrates on pharmaceuticals, chemicals, medical devices and biotechnology. He has been lead counsel in trials and appeals, representing both patentees and defendants, before the U.S. District Courts and the Federal Circuit, as well as representing clients before the International Trade Commission.

A Hatch-Waxman expert, he partners with clients to provide strategic formulation, portfolio and pre-litigation counseling concerning IP and related FDA issues affecting 505(b)(1), 505(b)(2) and ANDA applications, as well as issues concerning the BPCIA.

With expertise gained by representing brand and generic companies, he provides strategies and opinions (validity, freedom-to-operate) directed toward attaining client goals, whether this involves API/excipient selection, trade dress, formulation attributes, or labeling, and then works with clients to execute the desired strategy - whether this involves litigation in the federal courts, IPRs or arbitration.

Chris has been instrumental in obtaining favorable outcomes. Recently, he was counsel for Horizon in successful Hatch-Waxman litigations concerning PENNSAID® 2% against several ANDA challengers, resulting in settlements with favorable generic entry dates and a judgment of infringement/not invalid against Actavis/TEVA. He also was counsel for Dexcel in a successful declaratory judgment action against Takeda involving Dexcel’s 505(b)(2) OTC lansoprazole product. Other successful outcomes include the first generic for PLENDIL® and the invalidation of Orange Book patents on GENERESS FE®.

Chris and his team are also skilled in inter partes reviews (IPRs). He also has significant experience in navigating the 505(b)(2) pathway, including advising clients on PIV certification, Orange Book issues, related FDA issues, and portfolio development. Chris also has experience in reexaminations, reissues and post-grant proceedings under the AIA, as well as trade secret disputes. Due diligence also is a strength.

Chris has been named an “IP Star” by Managing IP, was listed in Intellectual Asset Management’s (IAM) Patent 1000 in Litigation, and was recognized as a “Life Sciences Star” by LMG Life Sciences (2018-2020). He has been selected by his peers as a Leading Lawyer in Intellectual Property Law, Leading Lawyers Network (2006-2021) and as an Illinois Super Lawyer in Intellectual Property Litigation (2016-2021). He also has been listed among the “Top Lawyers in Illinois” in Intellectual Property Law by Chicago Lawyer.

Chris is a former adjunct professor, developing and teaching a Master's level course in patent law for many years. Prior to co-founding Green Griffith, Chris was a Partner and Corporate Secretary of Leydig, Voit & Mayer and a member of its Board of Directors. He received a J.D. degree from the University of Houston and a B.S. degree in Chemical Engineering from Michigan State University.