Sean McEldowney

Specialty / Focus Areas. Sean M. McEldowney is a partner in Kirkland & Ellis's Intellectual Property Litigation Group (Washington, DC), where he concentrates on patent, trade-secret, and related IP disputes in federal district courts, the ITC, and Federal Circuit appeals. Per Kirkland's bio, his matters span chemical, semiconductor, medical-device, software/hardware, and industrial technologies — with his tracked docket concentrated on consumer-electronics and memory/semiconductor cases for Samsung (e.g., DDR/HBM memory patents, Bixby voice-assistant and smartphone patents). Firm materials describe him as trial counsel in more than 13 patent and trade-secret cases.

Side Preference. McEldowney is a defense-side practitioner: all three tracked appearances were for defendants, each under Kirkland. In practice he defends operating technology companies (Samsung, GD Energy Products, Ivantis/Alcon, and Lenovo/Motorola Mobility in a SEP licensing dispute) against patent owners, including NPEs/PAEs such as Staton Techiya/Synergy IP. I found no evidence in public sources of plaintiff-side or PAE-prosecution work.

Firm Context & Notable Cases. His entire publicly documented career is at Kirkland & Ellis, where he has been a partner in the IP Litigation Group (no prior firm identified in reliable sources). His most prominent matters are the Samsung cases in his tracked docket. In Staton Techiya LLC v. Samsung (E.D. Tex.), he was Counsel of Record on the team that won an "unclean hands" defense — Chief Judge Gilstrap found the NPE built its case on information stolen from Samsung by two former in-house attorneys, held the patents unenforceable, and dismissed with prejudice a ~$500M claim; the ensuing Federal Circuit appeal ended in settlement (Dec. 2024), and the team was named American Lawyer "Litigator of the Week" runner-up. By contrast, in Netlist v. Samsung (E.D. Tex., No. 2:21-cv-00463), where he served as lead counsel for Samsung, the defense lost a unanimous $303.15M willful-infringement verdict on memory patents (Apr. 2023), affirmed by final judgment and denial of post-trial motions through July 2024. More recently (Aug. 2026), he was on the Kirkland team that won a Waco jury defense verdict for GD Energy Products against UTEX Industries (non-infringement, covenant-not-to-sue, and obviousness invalidity) in one of Judge Albright's final trials.

PTAB / Bar / Education. Public profiles do not emphasize PTAB/IPR work, and I found no reliable evidence he appears regularly before the PTAB; his reported experience centers on district court, ITC, and Federal Circuit advocacy. He is admitted in California and the District of Columbia and before the Federal Circuit; he holds a J.D. cum laude from the University of Pennsylvania Carey Law School (2005) and a B.S. in chemical engineering from Washington State University (2000). He was a Super Lawyers "Rising Star" (DC, 2014–2017) and is recognized in The Legal 500 for ITC patent litigation.