A Current Look at the State of Inequitable Conduct and Other Equitable Concerns

Tom Irving, Partner, Marbury Law
Stacy Lewis, Law Clerk, Finnegan
Melissa Santos, , Finnegan
Jordan Cowger, , Finnegan
Xiaoguang Michelle Gao, Associate VP - Assistant General Patent Counsel , Eli Lilly and Company

Inequitable conduct is an “equitable defense to patent infringement that, if proved, bars enforcement of a patent. ” Therasense, Inc. v. Becton, Dickinson & Co. , 649 F. 3d 1276, 1285 (Fed. Cir. 2011) (en banc). “Unlike invalidity defenses, which are claim specific, . . . Inequitable conduct regarding any single claim renders the entire patent unenforceable. ” Id. At 1288.

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USA Intellectual Property Pharmaceutical April 2023 Vol.16, No. 63, Spring 2023

Tom Irving

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Tom Irving has some 45 years of experience in intellectual property law. His U.S. pharma practice includes America Invents Act (AIA) post-grant proceedings, due diligence, counseling, patent prosecution, reissue, and reexamination. In addition to advising on procuring strong U.S. patents, Tom counsels clients on a wide range of mainly pharmaceutical matters, including pre-litigation, Orange Book listings of patents covering FDA-approved drugs, infringement issues, enforceability, supplemental examination, and validity analysis. He has served as lead counsel in numerous patent interferences, reissues, and reexaminations; as lead counsel in numerous AIA post-grant proceedings; and as an expert witness in patent litigation and patent procurement.

Stacy Lewis

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Stacy Lewis is called to the bar in New York and has worked as a law clerk at Finnegan since 1995. She focuses on research and writing, particularly in the life sciences. She is the coordinating editor of the books Global Patent Litigation: How and Where to Win and Design Patent Law, as well as the coursebook Chemical Patent Practice. Stacy sits on the AIPLA Quarterly Journal and IPO Law Journal editorial boards. She can be reached at stacy.lewis@finnegan.com.

Melissa Santos

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Jordan Cowger

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Xiaoguang Michelle Gao

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Dr. Gao is Assistant General Patent Counsel at Eli Lilly and Company, supporting biologics and genetic medicine assets. She obtained her Ph.D. in Molecular Biology from Northwestern University, and J.D. from the University of Illinois. Prior to joining Eli Lilly, she was a Patent Attorney at Novartis Institutes for BioMedical Research, where she supported ImmunoOncology and Neuroscience programs. She also worked for Fish & Richardson as an associate, focusing her practice on biopharma-related patent prosecution and litigation there.

Eli Lilly and Company

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Lilly was founded in 1876 by Colonel Eli Lilly, a man committed to creating high-quality medicines that met real needs in an era of unreliable elixirs peddled by questionable characters. His charge to the generations of employees who have followed was this: "Take what you find here and make it better and better." More than 145 years later, we remain committed to his vision through every aspect of our business and the people we serve starting with those who take our medicines, and extending to health care professionals, employees and the communities in which we live.

Finnegan

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Finnegan, Henderson, Farabow, Garrett & Dunner, LLP is one of the largest IP law firms in the world. From offices in Atlanta, Boston, London, Munich, Palo Alto, Reston, Seoul, Shanghai, Taipei, Tokyo, and Washington, DC, the firm practices European, German, UK, and U.S. IP law. In addition to services related to all aspects of patent, trademark, and copyright law, including counseling, prosecution, licensing, and litigation, Finnegan provides counseling and litigation services in advertising, privacy, and a wide spectrum of additional IP-adjacent commercial matters, including trade secrets, international trade, the Internet, e-commerce, government contracts, antitrust, and unfair competition.

Marbury Law

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Finnegan, Henderson, Farabow, Garrett & Dunner, LLP is one of the largest IP law firms in the world. From offices in Atlanta, Boston, London, Munich, Palo Alto, Reston, Seoul, Shanghai, Taipei, Tokyo, and Washington, DC, the firm practices European, German, UK, and U.S. IP law. In addition to services related to all aspects of patent, trademark, and copyright law, including counseling, prosecution, licensing, and litigation, Finnegan provides counseling and litigation services in advertising, privacy, and a wide spectrum of additional IP-adjacent commercial matters, including trade secrets, international trade, the Internet, e-commerce, government contracts, antitrust, and unfair competition.

USA Intellectual Property Pharmaceutical April 2023 Vol.16, No. 63, Spring 2023

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