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Finnegan
Kaitlyn S. Pehrson
Associate
More
vCard
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
+1 202 408 4118
kaitlyn.pehrson@finnegan.com kaitlyn.pehrson@finnegan.com

Kaitlyn S. Pehrson

Associate

  • +1 202 408 4118 +1 202 408 4118
  • kaitlyn.pehrson@finnegan.com kaitlyn.pehrson@finnegan.com
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
  • vCard

Kaitlyn Pehrson focuses on patent and trade secret litigation as well as post-grant proceedings related to chemicals, pharmaceuticals, gene therapy treatments, medical devices, and energy technology. She represents clients in litigation proceedings in district courts and before the U.S. Court of Appeals for the Federal Circuit and the International Trade Commission (ITC).

Kaitlyn is a registered patent attorney with experience in all stages of litigation, including pre-litigation research and strategy; all phases of discovery, motion practice; preparing witnesses for trial; taking and defending depositions; and arguing matters in court. She manages day-to-day litigation activities and has key responsibilities in all aspects of proceedings, from the initial pleading stage through discovery, motions, claim construction, and trial. Kaitlyn also provides strategic guidance to clients on infringement, validity, as well as enforceability issues and has extensive experience with remedies and injunctive relief.

 

Kaitlyn’s experience includes representing innovators in complex, multi-defendant litigations involving treatments for complex medical conditions. The cases were against both individual defendants and corporations. Kaitlyn has assisted in several branded Hatch-Waxman and Biologics Price Competition and Innovation Act (BPCIA) litigations at the district court and Federal Circuit levels. She manages extensive discovery with accelerated case schedules and contentious defendants and navigates state and federal law, analyzing the impact of those differences on choice of venue and forum, what claims can be brought, and what remedies may be available. Katilyn counsels clients on case dispositive motions, including motions to dismiss trade secret and related claims, and has successfully opposed such motions. 

 

Prior to law school, Kaitlyn worked as an engineer in several technology fields, including roles where she handled medical devices, copper mining and extraction, and consumer goods. She applies her chemical engineering background and practical insights in protecting clients’ innovations across a wide range of chemical and life science technologies. She understands the details of processes and products related to these industries as well as the research and development required to commercialize them. Kaitlyn has experience as a process engineer monitoring, troubleshooting, and optimizing manufacturing processes in addition to experience as a research and development engineer developing processes and formulations.

 

Kaitlyn is committed to her pro bono practice. She has represented disabled military veterans before the U.S. Court of Appeals for Veterans Claims and the Federal Circuit in cases related to denial of benefits. Kaitlyn has been recognized on the Capital Pro Bono Honor Roll. Before joining the firm, she spent several months volunteering her legal services at the National Veterans Legal Services Program (NVLSP). 

Et Cetera

  • Served as an extern at Duke University's Office of Licensing and Ventures, 2019.
  • Omega Chi Epsilon (chemical engineering honor society), 2014-2015.

Experience

Rocket Pharmaceuticals, Inc. v. Lexeo Therapeutics, Inc., et al.

Represented Rocket Pharmaceuticals, Inc. in district court litigation involving claims of trade secret misappropriation and breach of contract against individual and corporate defendants and relating to complex treatments for genetic disorders. Successfully opposed motion to dismiss key claims and obtained settlement with all defendants following completion of fact discovery.

1:23-cv-09000, S.D.N.Y., Judges Castel, Aaron

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

Cambria Company LLC v. Cosentino SA

Successfully defended against a motion for preliminary injunction that would have excluded the accused synthetic slab products out of the U.S. market. Filed concurrent inter partes reviews (IPRs) and post-grant reviews (PGRs) challenging the asserted patents, leading to a settlement that leaves the U.S. market open to Cosentino’s industry-leading Silestone products.

6:20-cv-00894, -00895, -00896, -00897, W.D. Tex., Judge Albright
6:20-cv-01080, W.D. Tex., Judge Albright
IPR2021-00214, -00215, -00216; PGR2021-00010, -00090, PTAB, Judges Kalan, Ross, Kaiser

Nippon Shinyaku Co., Ltd. v. Sarepta Therapeutics, Inc.

Represented Sarepta Therapeutics, Inc. and its licensor The University of Western Australia in patent litigation relating to nucleic acid therapies for treatment of Duchenne muscular dystrophy (DMD). A federal jury in the District of Delaware awarded Sarepta Therapeutics over $115 million in its patent infringement case against Nippon Shinyaku Co. Ltd. This substantial verdict upholds the validity of Sarepta's groundbreaking exon-skipping treatment, and the underlying work at the University of Western Australia.

1:21-cv-01015, D. Del., Judges Hall, Williams

CMC Materials, LLC v. Dupont de Nemours, Inc. et al.

Represented DuPont in patent and antitrust litigation in the District of Delaware against a direct competitor relating to chemical-mechanical polishing compositions.

1:20-cv-00738, D. Del., Judge Hall

Bial - Portela & CA S.A. v. Alkem Laboratories Ltd et al.

Represented Bial in district court Hatch-Waxman litigation involving the anti-epileptic drug Aptiom®.

1:18-cv-00304, D. Del., Judges Connolly, Burke

Insights

At the PTAB Blog

A Split Decision on Patentability: What Worked for the Petitioner and What Did Not A Split Decision on Patentability: What Worked for the Petitioner and What Did Not

February 22, 2023

At the PTAB Blog

How Sweet It Smells: Examiner Rejection of Composition Claims Reversed How Sweet It Smells: Examiner Rejection of Composition Claims Reversed

April 6, 2022

Webinar

Beyond the Defend Trade Secrets Act (DTSA): Trends and Considerations When Enforcing Trade Secrets Under State Law

Beyond the Defend Trade Secrets Act (DTSA): Trends and Considerations When Enforcing Trade Secrets Under State Law Beyond the Defend Trade Secrets Act (DTSA): Trends and Considerations When Enforcing Trade Secrets Under State Law

March 16, 2022

Webinar

Prosecution First Blog

Supremely Confusing on That Complex Word “A”; Is It Only One or Is It One or More? Supremely Confusing on That Complex Word “A”; Is It Only One or Is It One or More?

June 11, 2021

Federal Circuit IP Blog

Spotlight on Upcoming Oral Arguments – May 2021 Spotlight on Upcoming Oral Arguments – May 2021

April 26, 2021

News

Award/Ranking

61 Finnegan Attorneys Recognized on the 2025 Capital Pro Bono Honor Roll 61 Finnegan Attorneys Recognized on the 2025 Capital Pro Bono Honor Roll

May 7, 2026

Commentary

Behind the Case: How Latham & Finnegan Secured $115m Biotech Win Behind the Case: How Latham & Finnegan Secured $115m Biotech Win

January 9, 2025

Managing Intellectual Property

Commentary

Litigators of the Week: Defending Against a $290M Claim and Scoring a $116M Win in Drug Patent Fight Litigators of the Week: Defending Against a $290M Claim and Scoring a $116M Win in Drug Patent Fight

January 9, 2025

The AmLaw Litigation Daily

Award/Ranking

60 Finnegan Attorneys Named to 2023 Capital Pro Bono Honor Roll

60 Finnegan Attorneys Named to 2023 Capital Pro Bono Honor Roll

May 15, 2024

Press Release

46 Finnegan Attorneys Named to 2021 Capital Pro Bono Honor Roll 46 Finnegan Attorneys Named to 2021 Capital Pro Bono Honor Roll

June 3, 2022

Commentary

New Lawyers on Track for IP Careers Help Veterans Boost Benefits New Lawyers on Track for IP Careers Help Veterans Boost Benefits

November 11, 2021

Bloomberg Law
More

Professional Activities

  • American Intellectual Property Law Association (AIPLA)
  • D.C. Bar Association
  • Virginia Bar Association
Admissions and Education

Admissions

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

Education

Duke University School of Law
J.D., 2020
The University of Arizona
B.S., Chemical Engineering, magna cum laude with honors, 2015

Languages

  • Spanish

Kaitlyn's Practices

Global IP Enforcement, Litigation, and Trials
Branded Hatch-Waxman (ANDA) Litigation and Trials
ITC Section 337 Investigations and Trials
Patent Litigation and Trials
Pretrial Strategies
Trade Secrets
Patent Office Invalidation Proceedings
PTAB Invalidation Proceedings: IPR and PGR
Prosecution and Portfolio Management
Patent Drafting and Prosecution
Trade Secrets

Kaitlyn's Industries

Chemicals, Industrials, and Materials
Chemical
Manufacturing
Consumer Goods and Services
Consumer Products
Life Sciences
Biologics
Digital Health
Medical Device and Diagnostics
Pharmaceutical

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