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Finnegan
Kassandra M. Officer
Partner
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vCard
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
+1 202 408 4270
kassandra.officer@finnegan.com kassandra.officer@finnegan.com

Kassandra M. Officer

Partner

  • +1 202 408 4270 +1 202 408 4270
  • kassandra.officer@finnegan.com kassandra.officer@finnegan.com
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
  • vCard

Kassandra (Kassi) Officer focuses on complex, high-stakes patent and trade secret litigation before U.S. district courts as well as post-grant proceedings before the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO). Her practice encompasses a wide range of technologies, with an emphasis on chemicals, pharmaceuticals, and agricultural products. Kassi currently serves as one of the partners-in-charge of pro bono at Finnegan.

Kassi represents pharmaceutical patent holders in litigations arising under the Hatch-Waxman Act and the Biologics Price Competition and Innovation Act (BPCIA); agricultural companies in patent infringement and breach of contract litigations; and plaintiffs and defendants in trade secret misappropriation actions. Her experience covers all aspects of trial preparation, including managing day-to-day litigation activities; conducting offensive and defensive discovery; taking and defending fact and expert depositions; preparing for and taking witnesses at trial; delivering closing arguments; and drafting post-trial briefing. Kassi also counsels clients regarding quarantine and clean-room redesign procedures.

 

Kassi represents clients in inter partes review (IPR), ex parte reexamination (EPR), and other contested proceedings before the PTAB. Her experience includes developing validity positions, drafting written submissions, preparing and defending technical expert witnesses, and arguing before the Board. Kassi also has an active patent prosecution and counseling practice, preparing and prosecuting U.S. patent applications on behalf of international clients, with a focus on chemical subject matter, including pharmaceutical and veterinary drug products.

 

Kassi has a robust background in a wide variety of chemical, pharmaceutical, agricultural, mechanical, and electrical technologies. She has worked on cases involving chemical manufacturing processes, polymers, small molecule drugs and biologics, genetically modified seeds and agrochemicals, automotive products, consumer electronics, database management systems, neural networks, and wireless communications

 

As one of the partners-in-charge of pro bono at Finnegan, Kassi draws on her experience in supporting the firm’s programs. She assists veterans with claims before the U.S. Court of Appeals for Veterans Claims and the U.S. Court of Appeals for the Federal Circuit. She also assists immigrants seeking asylum and inmates seeking post-conviction relief. Kassi is involved in the firm’s business initiative Finnegan FORWARD (Focused on Raising Women’s Advancement, Representation, and Development).

 

 

Experience

 Arvinas Operations, Inc. et al. v. Qian et al.

Defending Accutar Biotechnology, Inc. in a trade secret lawsuit brought by Arvinas regarding alleged trade secrets concerning breast cancer therapies.

3:22-cv-00717, D. Conn., Judges Chatigny, Richardson

Jumio Corporation v. FaceTec, Inc.

Representing FaceTec, Inc. in four inter partes reviews (IPRs) relating to groundbreaking 3D liveness detection technology.

IPR2025-00106, -00107, -00108, -00109, PTAB, Judges Khan, Hoang, Baer

Bayer Cropscience LP et al. v. Corteva Agriscience LLC et al.

Successfully represented defendant Corteva in a Delaware state court action for breach of contract arising out of a patent cross-license agreement relating to Agrobacterium-mediated plant transformation and transgenic seeds, resulting in case-dispositive summary judgment in Corteva’s favor.

N22C-07-168, Delaware Superior Court, Complex Commercial Litigation Division

Mylan Pharmaceuticals Inc. v. Bausch Health Ireland Ltd.

Represented Bausch Health et al. in Abbreviated New Drug Application (ANDA) litigation and related inter partes reviews (IPRs) involving Trulance® (plecanatide) tablets for the treatment of irritable bowel syndrome and chronic idiopathic constipation, leading to a final decision confirming patentability in the first IPR proceeding and non-institution decisions in the remaining four IPR proceedings and a favorable settlement post-trial. 

IPR2022-00722, -01102, -01103, -01104, -01105, IPR2023-00016, PTAB, Judges Hardman, Hulse, Sheridan, Valek
26-1595, Fed. Cir.
1:21-cv-00611, D. Del., Judge Stark
2:21-cv-10057, -10403, 2:23-cv-00170, -03333, 2:24-cv-07182, -11179, D.N.J., Judge Chesler
2:21-cv-00573, W.D. Pa., Judges Cercone, Hardy
1:22-cv-00020, -00085, 1:24-cv-00036, 1:25-cv-00003, N.D.W. Va., Judge Kleeh

AbbVie Inc. et al v. Alvotech hf.

Represented AbbVie Inc. in Biologics Price Competition and Innovation (BPCIA) litigation related to Humira®

1:21-cv-02258, 1:21-cv-02899, N.D. Ill., Judge Lee

E. I. du Pont de Nemours v. Synvina C.V.

Represented DuPont and ADM in a successful Federal Circuit appeal from an IPR proceeding, resulting in reversal of the PTAB’s decision and invalidation of all challenged claims of Synvina’s patent directed to production of 2,5-furan dicarboxylic acid.

17-1977, Fed. Cir.

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Insights

Articles

Trending at the PTAB: Petitioners' Settled Expectations

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October 1, 2025

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PTAB Developments, Including Discretionary Denials and Related Procedures

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July 24, 2025

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Observations on One Year of IPR and PGR Institution Denials and Final Written Decisions: Life Sciences

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December 3, 2024

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Critical Things to Know About Director Review Practice at the USPTO

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October 22, 2024

Intellectual Asset Management (IAM)

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August 13, 2024

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August 7, 2024

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News

Award/Ranking

Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked

May 28, 2026

Intellectual Asset Management (IAM)

Award/Ranking

Best Lawyers Recognizes 44 Finnegan Attorneys in its 2026 Edition of The Best Lawyers and Ones to Watch Best Lawyers Recognizes 44 Finnegan Attorneys in its 2026 Edition of The Best Lawyers and Ones to Watch

August 21, 2025

Best Lawyers

Award/Ranking

31 Finnegan Attorneys Recognized by Best Lawyers 31 Finnegan Attorneys Recognized by Best Lawyers

August 15, 2024

Best Lawyers

Press Release

32 Finnegan Attorneys Recognized by Best Lawyers

32 Finnegan Attorneys Recognized by Best Lawyers

August 17, 2023

Best Lawyers

Award/Ranking

54 Finnegan Attorneys Named to 2022 Capital Pro Bono Honor Roll 54 Finnegan Attorneys Named to 2022 Capital Pro Bono Honor Roll

July 21, 2023

Press Release

Finnegan Elects Eight New Partners Finnegan Elects Eight New Partners

January 3, 2023

Professional Activities

  • American Bar Association
  • American Chemical Society
  • American Institute of Chemical Engineers
  • American Intellectual Property Law Association
Admissions and Education

Admissions

  • U.S. Patent and Trademark Office
  • District of Columbia
  • Massachusetts
  • U.S. Court of Appeals, Federal Circuit

Education

Indiana University Maurer School of Law
J.D., cum laude, 2014
The Ohio State University
B.S., Chemical and Biomolecular Engineering, magna cum laude, 2011

Kassandra's Practices

Appeals, Issues, and Legal Strategy
Appeals from the PTAB
Federal Circuit and Supreme Court Appeals
Global IP Enforcement, Litigation, and Trials
Branded Hatch-Waxman (ANDA) Litigation and Trials
Patent Litigation and Trials
Trade Secrets
Patent Office Invalidation Proceedings
Ex Parte Reexamination (EPR)
PTAB Invalidation Proceedings: IPR and PGR
Prosecution and Portfolio Management
Due Diligence
Opinions and Counseling
Patent Drafting and Prosecution
Trade Secrets

Kassandra's Industries

AI, Electronics, and Information Technology
Electronic Devices and Components
Chemicals, Industrials, and Materials
Chemical
Energy
Clean Energy and Renewables
Oil and Gas
Life Sciences
Biologics
Medical Device and Diagnostics
Pharmaceutical
Transportation and Logistics
Automotive and Smart Mobility Tech

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