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Finnegan
Kai Rajan
Of Counsel
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vCard
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
+1 202 408 4307
kai.rajan@finnegan.com kai.rajan@finnegan.com

Kai Rajan

Of Counsel

  • +1 202 408 4307 +1 202 408 4307
  • kai.rajan@finnegan.com kai.rajan@finnegan.com
  • 901 New York Avenue, NW
  • Washington, DC 20001-4413
  • vCard

Kai Rajan has more than fifteen years of experience in intellectual property. He focuses his practice on patent portfolio development, patent litigation, and post-grant proceedings, in a broad range of technologies.

Kai practices patent litigation and prosecution for a wide range of clients, from startups to established companies. His patent prosecution practice focuses on developing patent portfolios in a broad range of computer, mechanical, and electrical technologies. He develops portfolios with multiple types of intellectual property protection including utility patents, design patents, trademark, and copyright. He also focuses on the IP issues of emerging technologies such as additive manufacturing, also known as 3D printing.

Kai’s litigation experience includes motions and briefing practice. He develops patent litigation strategies that leverage the benefits of recent patent reform in courts and in the U.S. Patent and Trademark Office (USPTO), such as inter partes review (IPR) and covered business method (CBM) petitions, and pre-issuance submissions.

Prior to joining Finnegan, Kai gained six years of experience as a patent examiner at the USPTO, where he negotiated patentable subject matter for mechanical, electrical, business method, and software technologies in the healthcare fields. He served as the lead examiner of his examination group for approximately two years, examining patent applications directed to a diverse array of fields including health and fitness tracking systems, body-worn smart medical devices, networked sensor systems, wireless data transmission, computerized medical diagnostic devices and systems, medical diagnostic device user interfaces, hospital patient and equipment management, healthcare personnel management, ambulatory patient monitoring and emergency response systems, ambulatory and hospital patient location medical record management, medical record analysis and data mining, healthcare and diagnostic mobile applications (apps), movement recognition systems, data visualization, and business methods directed to health and fitness.

Experience

Carrum Technologies, LLC v. BMW of North America, LLC, et al.

Obtained complete victory against Carrum on appeal of the District of Delaware’s claim construction to the Federal Circuit following Carrum’s stipulation of non-infringement under the claim construction, thereby exonerating BMW’s ACC system, first sold in 2000, against Carrum’s 2004 patents. Invalidated several asserted claims through post-grant efforts before the U.S. Patent Office, including IPRs and EPRs, and pursued claims through proceedings before the Eastern District of Virginia to vindicate BMW’s patent challenges.

1:18-cv-01645, D. Del., Judge Andrews
21-1435, 24-1480, Fed. Cir., Judges Clevenger, Cunningham, Lourie, Moore, Prost, Taranto
IPR2019-00902, -00903, -00904, -00905, -00927, 00928, PTAB, Judges Browne, Scanlon, Tornquist
90/019,010, CRU

United States Automobile Association v. Truist Bank

Represented Truist Bank in a patent litigation in the Eastern District of Texas against USAA, who asserted five patents directed to mobile deposit technologies. After asserting counterclaims on six patents and filing IPR petitions for each of USAA’s asserted patents, Finnegan’s strategy led to a favorable dismissal.  

2:22-cv-00291, E.D. Tex., Judge Gilstrap
IPR2022-01593, IPR2023-00143, -00144, -00183, -00184, -00829, PTAB, Judges Dirba, Droesch, McMillin, White, Zecher

iRobot v. SharkNinja

Represented petitioner SharkNinja in district court litigation and related inter partes reviews related to robot vacuum cleaner technology. Successfully cancelled all claims iRobot asserted in the district court litigation at the PTAB.

1:19-cv-12125, D. Mass., Judges Burroughs, Kelley
IPR2020-00733, -00734, -00735, -00863, PTAB, Judges Grossman, McMillin, Melvin, Saindon, Wieker

Insights

Articles

Trending at the PTAB: The Influence of Litigation Arguments

Trending at the PTAB: The Influence of Litigation Arguments Trending at the PTAB: The Influence of Litigation Arguments

May 15, 2025

Law360

Articles

Progress Preempted: A Call to Restore the Cornerstone of § 101

Progress Preempted: A Call to Restore the Cornerstone of § 101 Progress Preempted: A Call to Restore the Cornerstone of § 101

March 14, 2025

Westlaw Today

Articles

USPTO's AI Guidance: Where Is the Abstract Idea Analysis?

USPTO's AI Guidance: Where Is the Abstract Idea Analysis? USPTO's AI Guidance: Where Is the Abstract Idea Analysis?

September 20, 2024

Westlaw Today

At the PTAB Blog

PTAB Issues Notice of Proposed Rulemaking for Motions to Amend PTAB Issues Notice of Proposed Rulemaking for Motions to Amend

March 1, 2024

Articles

Trending at the PTAB: Navigating a Motion to Amend

Trending at the PTAB: Navigating a Motion to Amend Trending at the PTAB: Navigating a Motion to Amend

March 1, 2024

Webinar

Navigating the USPTO Examiner Count System and Other USPTO Programs Navigating the USPTO Examiner Count System and Other USPTO Programs

October 19, 2021

Webinar

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Professional Recognition

"The standout partner is Karthik Kumar while standout associates are Colin Kreutzer, Abhay Watwe, Kai Rajan, Stephanie Ham, and Samir Ismail."

The Legal 500 U.S.

"The standout partner is Karthik Kumar while standout associates are Colin Kreutzer, Abhay Watwe, Kai Rajan, Stephanie Ham, and Samir Ismail."

The Legal 500 U.S.

News

Press Release

Seven-Year Legal Battle Concludes with BMW’s Victory Over Carrum Technologies Seven-Year Legal Battle Concludes with BMW’s Victory Over Carrum Technologies

October 15, 2025

Award/Ranking

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

August 15, 2024

Best Lawyers

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

Media Mention

PTAB Wipes Out Remote-Start IP BMW Accused of Infringing PTAB Wipes Out Remote-Start IP BMW Accused of Infringing

May 10, 2022

Law360

Media Mention

PTAB Nullifies Video Services Patent Challenged by Unified PTAB Nullifies Video Services Patent Challenged by Unified

March 30, 2017

Law360
Admissions and Education

Admissions

  • U.S. Patent and Trademark Office
  • District of Columbia
  • Virginia
  • U.S. District Court, E.D. Texas

Education

Catholic University of America, Columbus School of Law
J.D., cum laude, 2013
University of Maryland
B.S., Biological Resources Engineering, 2006

Kai's Practices

Global IP Enforcement, Litigation, and Trials
Design Rights
Patent Litigation and Trials
Patent Office Invalidation Proceedings
PTAB Invalidation Proceedings: IPR and PGR
Prosecution and Portfolio Management
Appeals to the PTAB
Design Rights
Due Diligence
IP Portfolio Management
Licensing, Pooling, and Other Transactions
Opinions and Counseling
Patent Drafting and Prosecution

Kai's Industries

AI, Electronics, and Information Technology
Electrical and Computer Technology
Electronic Devices and Components
Robotics
Chemicals, Industrials, and Materials
Additive Manufacturing
Communications
Financial Services and Business Systems
Internet of Things (IoT)
Consumer Goods and Services
Consumer Products
Hospitality, Gaming, and Leisure
Sports, Fitness, and Outdoor Recreation
Life Sciences
Biotechnology
Digital Health
Medical Device and Diagnostics
Transportation and Logistics
Aerospace, Aviation, and Unmanned Aerial Systems (UAS)
Automotive and Smart Mobility Tech

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