Kaiyi Xie has a broad litigation practice, representing a diverse client base in significant business disputes. He has litigated a variety of class action cases, including securities disputes, consumer digital privacy and data security matters, and other complex civil suits. His experience also includes representing both plaintiffs and defendants in intellectual property, patent infringement, and trade secret litigation.
Mr. Xie has represented clients spanning multiple industries—such as telecommunications, Internet of Things, social media, cryptocurrency, private equity, and renewable energy—before federal and state trial courts and the ITC. His pro bono matters have included defending municipal ordinances from First and Second Amendment challenges, constitutional attacks on criminal convictions obtained by non-unanimous jury verdicts, and appellate litigation concerning veterans benefits and wrongful arrest.
Prior to joining Keker, Van Nest & Peters, Mr. Xie litigated complex civil cases at a plaintiff-focused boutique firm. He also formerly worked as a litigation associate at an Am Law Top 20 law firm and an IP litigation associate at an Am Law Top 10 law firm.
Mr. Xie served as a law clerk to Judge Lucy H. Koh of the U.S. District Court for the Northern District of California and to Judge Raymond C. Clevenger III of the U.S. Court of Appeals for the Federal Circuit. He also served as a judicial intern to Judge Jane R. Roth of the U.S. Court of Appeals for the Third Circuit.
Mr. Xie earned his J.D. cum laude from the University of Pennsylvania Law School along with a graduate certificate in business management from the Wharton School of Business. He earned a Master of Engineering in biomedical engineering, a B.S. in biomedical engineering, and a B.S. in mathematics from the University of Maryland.
"Silence of the Lambs: Mental Health of Junior Attorneys," Daily Journal, 2022
"Is the First Amendment Going Rogue?," Daily Journal, 2022
Panelist, Obtaining Clerkships, University of Pennsylvania, 2021
Panelist, Careers in Law and Technology, University of Pennsylvania, 2021
"The Attack on NYT v. Sullivan and its Impact on Local Journalism," Daily Journal, 2021
Panelist, Private Sector Legal Careers, Stanford University, 2020
"Improving the Patent System by Encouraging Intentional Infringement: The Beneficial Use Standard of Patents," 165 U. PA. L. REV. 1019 (2017)
"The Effect of Patent Length on Social Welfare: The Economics of Modifying Patent Life as a Policy Instrument," SOC. SCI. RES. J. (2015)