Caryn C. Borg-Breen, Ph.D.

Caryn C. Borg-Breen, Ph.D.

Attorney Profile

Top Rated Intellectual Property Litigation Attorney in Chicago, IL

Green, Griffith & Borg-Breen LLP
 | 676 N. Michigan Avenue, Suite 3900
Chicago, IL 60611
Phone: 312-883-8000
Fax: 312-883-8001
Selected To Super Lawyers: 2016 - 2021
Selected To Rising Stars: 2009 - 2010, 2012 - 2015
Licensed Since: 2006
Practice Areas:
  • Intellectual Property Litigation (90%),
  • Intellectual Property (10%)
    Attorney Profile

    Caryn combines the focused, technical thinking of a Ph.D. chemist with the strategic and competitive approach of a trial lawyer. A founding partner of Green, Griffith & Borg-Breen, she is regarded by clients and colleagues alike as a key advisor who quickly synthesizes complex ideas and communicates them in compelling, straightforward language.

    Caryn represents both plaintiffs and defendants in patent litigation and consultation arising under the Hatch‐Waxman Act. She has served as lead trial counsel in patent infringement litigation in the U.S. federal courts and argued appeals before the Federal Circuit. Caryn also has represented clients in inter partes review (IPR) and interference actions before the Patent Trial and Appeal Board (PTAB).

    Beginning each case with a deep-dive technical analysis, Caryn offers her clients a detailed assessment of potential outcomes.

    Caryn also advises biotechnology, chemical and pharmaceutical companies on freedom-to-operate, due diligence, licensing and prosecution issues regarding brand and generic medicines, biologics and biosimilars, medical devices and chemical products. Clients rely on her ability to master the technical details of their products with total recall, ensuring that every aspect of their intellectual property is diligently protected and actively defended at all stages of development and market release.

    Before co-founding Green, Griffith & Borg-Breen, Caryn was a partner at Leydig, Voit and Mayer, Ltd.

    White Papers

  • FDA Struggles To Foster An Affordable Biosimilar Insulin (2019) - Green Griffith co-founding partner Caryn Borg-Breen offers pharmaceutical industry insights in her article, “FDA Struggles To Foster An Affordable Biosimilar Insulin,” published in the Intellectual Property section of Law360.

  • About Caryn Borg-Breen, Ph.D.

    Admitted: 2006, Illinois

    Professional Webpage:


    • Recipient of “Women, Influence & Power in Law” Award, Collaborative Leadership Category, Corporate Counsel, 2019
    • Listed in The Best Lawyers in America© in Litigation – Patent, 2020-2021
    • Selected as a “Notable Gen X Leader in Law,” Crain’s Chicago Business, 2019
    • Named an “IP Star,” Managing IP, 2018-2020
    • Listed in Intellectual Asset Management’s (IAM) Patent 1000 in Litigation, 2018-2020
    • Recognized by Illinois Super Lawyers in Intellectual Property Litigation, 2018-2021, Illinois Super Lawyers
    • Selected as a “Life Sciences Star,” LMG Life Sciences, 2018-2020
    • Featured in Leading Lawyers Magazine Business Edition, 2018
    • Honored in “Chicago’s Notable Women Lawyers” by Crain’s Custom Media, 2018, 2020
    • Selected by peers as a Leading Lawyer in Intellectual Property Law – Leading Lawyers Network, 2015 – 2021, Leading Lawyers Network
    • Named in the “Illinois Rising Stars” list, as published in Illinois Super Lawyers, 2009-2010, 2012-2015
    • Honored in “Top Attorneys: Illinois Outstanding Young Woman Lawyers,” as published in Chicago Magazine, 2014

    Special Licenses/Certifications:

    • U.S. District Court for the Northern District of Illinois
    • U.S. Court of Appeals for the Federal Circuit
    • Registered Patent Attorney, U.S. Patent and Trademark Office, No. 52,637

    Scholarly Lectures/Writings:

    • Borg-Breen, C., Note, "Garage Door Openers, Printer Toner Cartridges, and the New Age of the Digital Millennium Copyright Act," 100 Nw. U. L.R. 885 (2006).
    • "Epoxidation - Homogeneous" Merlau, M. L.; Borg-Breen, C.C.; Nguyen, S.T. in Horvath, I. Encyclopedia of Catalysis; John Wiley & Sons: New York, 2002.
    • "Synthesis of the Bifunctional Phosphinidene Cluster, Fe3(CO)9(µ3-PH)2, and a Systematic Study of the Reactivity of the Cluster-Bound P-H Functional Group" Borg-Breen, C.C.; Bautista, M.T.; White, P.S.; Schauer, C.K., J. Am. Chem. Soc. 2000, 122, 3952 - 3962.
    • "Multi-Electron Redox Properties of Platinum-Capped Mono- and Dicluster Complexes: Model Systems for Linear Cluster Arrays" Borg-Breen, C.C.; Schauer, C.K. American Chemical Society National Meeting, New Orleans, LA, August 1999.
    • "Synthesis and Characterization of Platinum-Linked Triiron Clusters" Borg-Breen, C.C.; Schauer, C.K.; American Chemical Society National Meeting, Las Vegas, NV, September 1997.

    Educational Background:

    • Northwestern University School of Law, J.D., cum laude, 2006
    • University of North Carolina at Chapel Hill, Ph.D. (Chemistry), 2000
    • College of William and Mary, B.S. (Chemistry), magna cum laude (Phi Beta Kappa), 1994

    Industry Groups

    • Pharmaceutical And Chemical Arts
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    Office Location for Caryn C. Borg-Breen, Ph.D.

    676 N. Michigan Avenue
    Suite 3900
    Chicago, IL 60611

    Caryn C. Borg-Breen, Ph.D.:

    Last Updated: 10/27/2020

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