Gaby L. Longsworth, Ph.D., is a director in Sterne Kessler’s Biotechnology & Chemical Practice Group and chair of the firm’s Diversity & Inclusion Committee. Gaby has been consistently recognized as a “Life Sciences Star” by LMG Life Sciences since 2016. In 2017 and 2020, she was a finalist for “Patent Strategy and Management Attorney of the Year, District of Columbia,” in LMG’s annual Life Sciences Awards. In 2019, Profiles in Diversity Journal listed her among their “Women Worth Watching®” award.

Gaby is particularly well-known by innovator and generic pharmaceutical companies world-wide for her insights and knowledge of intellectual property and Hatch-Waxman law. Capitalizing on her extensive generic pharmaceutical expertise, Gaby is uniquely qualified to evaluate complex innovator IP portfolios from a generic perspective, including method-of-use claim coverage relative to the product label, Orange Book patent listing and data exclusivity, 505(b)(2) strategies, labeling carve-outs, and Patent Term Extensions.

Gaby also counsels biopharmaceutical clients from around the world in all areas of patent procurement, including domestic and foreign patent preparation and lifecycle management strategies. Gaby practices primarily in the fields of biotherapeutics, small molecules, biologics, immunotherapy, antibody technologies, microbiome-based technologies, probiotics, synthetic biology, DNA amplification/PCR, diagnostics, vaccines, viral vectors, formulations and drug delivery.

Gaby has rendered more than a thousand invalidity, non-infringement, freedom-to-operate, and patentability opinions in areas such as: small molecules; polymorphs; crystal forms and salts; chemical synthesis; agricultural chemicals, pharmaceutical formulations, including oral dosage forms and parenterals; transdermal patches; ophthalmics, creams, gels, suspensions, nasal and oral inhalation forms, pharmacokinetics, nucleic acids, medical devices and therapeutic antibodies.

In addition, Gaby has strong experience in biopharmaceutical Inter Partes Review (IPR) proceedings before the Patent Trial and Appeal Board (PTAB).

In addition to maintaining a vibrant practice, Gaby is one of the organizers of “INSPIRED by the Women of Sterne Kessler,” an affinity group designed to engage female attorneys through participation in a variety of programs that support personal and professional development. She is also a sustaining member of the Women’s Bar Association of the District of Columbia.

Gaby earned a J.D. at Georgetown University Law Center, a Ph.D. in human genetics and molecular biology at The Johns Hopkins University and a B.S. in molecular biology from the Florida Institute of Technology. She is fluent in Dutch.

When not practicing law, Gaby can be found writing a blog on natural hair and spending time with her family on the water.

  • Catalyst Pharm. v. Jacobus Pharm. Co., Civil Action 20-14590 (MAS) (DEA) (D.N.J. Jul. 31, 2021). Representing patent owner Catalyst Pharmaceuticals, Inc. concerning infringement of muscle disorder drug patent.
  • Eli Lilly and Company v. Teva Pharmaceuticals International GmbH et al, Nos. IPR2018-01711, -01712, -01710, -01422, -01423, -01424, -01425, -01426, -01427 (P.T.A.B. 2018) (Representing patent owner Teva Pharmaceuticals International GmbH in defense of 9 patents challenged in IPR proceedings).
  • Represented generic pharmaceutical company in IPR proceedings concerning acne drug.
  • Represented generic pharmaceutical company in Hatch-Waxman case concerning leading overactive bladder drug.
  • Represented generic pharmaceutical company in Hatch-Waxman case concerning leading antipsychotic drug.

  • World Intellectual Property Review (WIPR), “WIPR Leaders” (2023)
  • LMG Life Sciences, “Life Sciences Star” (2023 – 2016)
  • LMG Life Sciences, “Finalist – Patent Strategy and Management Attorney of the Year (District of Columbia) Category” (2020, 2017)
  • Profiles in Diversity Journal, “Women Worth Watching®” (2019)

  • B.S., Florida Institute of Technology
  • B.S., Human Genetics and Molecular Biology, Florida Institute of Technology
  • B.S., Molecular Biology, Florida Institute of Technology

  • District of Columbia
  • Maryland
  • Supreme Court of the United States
  • United States Patent & Trademark Office

  • American Intellectual Property Law Association
  • Maryland State Bar Association, Intellectual Property Committee
  • Women’s Bar Association of the District of Columbia
  • BNA Medical Devices Law & Industry Report, Advisory Board Member (2018-2014)

  • Dutch

Hosted Event

2024 AIPLA Women in IP Law Global Networking Event

Washington, DC, Sterne Kessler, April 18, 2024 6:00 PM - 8:00 PM EDT

Industry Event

10th Annual BPIP Conference

Tel Aviv, Israel, Sheraton Hotel Tel, Aviv, April 8, 2024 9:00 AM - 5:15 PM EDT

Speaking Engagement

The 2024 Sedona Conference on Global Intellectual Property Litigation

Munich, Germany, The Charles Hotel, March 5, 2024

Webinar

Navigating the Headwinds in the IP Field

Virtual, February 21, 2024 2:00 PM - 3:00 PM EST

Webinar

Patent Term Extension Considerations for BioPharma Patents

Virtual, December 13, 2023 2:00 PM - 3:00 PM EST

Webinar

Journey to Juneteenth

Virtual, June 20, 2023 11:00 AM - 12:00 PM EST

Webinar

Successes and Challenges Faced by Leaders in the Black IP Community

Virtual, February 16, 2023 2:00 PM - 3:00 PM EST

Webinar

Pharma Patent Term Extensions: The good, the bad, and the ugly

Virtual, January 26, 2023 9:00 AM - 10:10 AM EST

Webinar

Flexible & Effective Leadership Strategies Post-2020

Virtual, October 20, 2022 2:00 PM - 3:00 PM EST

Speaking Engagement

Business Reasons for Using or Not Using the New Unitary Patent?

Virtual, March 31, 2022 11:00 AM - 2:00 PM EST

Speaking Engagement

Food for Thought: What Is the Optimal IP Strategy for Cell- or Plant-Based Protein?

Virtual, February 18, 2022 2:00 PM - 3:30 PM EST

Speaking Engagement

How to Successfully Drive Inclusion and Diversity in EVERY IP Department

Virtual, April 21, 2021 10:30 AM - 12:00 PM EST

Webinar

A Tool Box for Success in Early Stage Pharma Medical Initiatives

Virtual, January 12, 2021 8:00 AM - 10:00 AM EST

Webinar

Diversity and Inclusion in STEM Career Trajectories

December 7, 2020 12:00 PM - 1:00 PM EST

Webinar

IP Strategies – Claiming New Methods of Use and New Formulations, and Licensing IP

Virtual, November 19, 2020 11:00 AM - 12:00 PM EST

Speaking Engagement

Life Science Patents in Practice

Virtual, September 23, 2020 2:10 PM - 2:30 PM EST

Webinar

Intellectual Property for Deep Tech

July 30, 2020 5:00 PM - 7:30 PM EST

Webinar

Honing Your Business Development Skills

April 29, 2020 10:00 AM - 11:30 AM EST

Webinar

Innovation in the Age of COVID-19

April 14, 2020 11:00 AM - 1:00 PM EST

Speaking Engagement

Women in STEM Symposium

Baltimore, MD, Turner Concourse, JHU East Baltimore Campus, April 6, 2019

Speaking Engagement

Access! 2019 – AAM Annual Meeting

New Orleans, LA, Hyatt Regency New Orleans, February 4, 2019

Speaking Engagement

The Sedona Conference’s Patent Conference: Promoting Invention, Entrepreneurship, Economic Growth, and Job Creation

Washington, DC, Covington & Burling LLP, January 17, 2019

Speaking Engagement

Israel Global IP Strategy Forum

Herzliya, Israel, Dan Accadia Herzliya Hotel, July 9, 2018

Speaking Engagement

2018 Global IP Strategy Conference

Washington, DC, March 9, 2018 12:00 AM - 11:59 PM EST

Speaking Engagement

Israel Global Patent Litigation Forum

Tel Aviv, June 26, 2017

4th Plant Genomics Congress USA

September 12, 2016

IP Strategy: New York 2014

November 11, 2014

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