S. Alex Lasher

S. Alex Lasher is a partner in the Washington, D.C. office of Quinn Emanuel Urquhart & Sullivan, where he is the head of the firm's International Trade Commission (ITC) Section 337 practice. His practice is concentrated on patent litigation before the ITC, where he has represented complainants, respondents, and third parties in over seventy Section 337 investigations over more than two decades. His work primarily involves technology-intensive sectors such as consumer electronics, medical devices, and other high-tech and biotech patent litigation. Prior to joining Quinn Emanuel, his professional history includes positions at Alston & Bird and Adduci, Mastriani & Schaumberg.

Based on the single tracked case, where he represented the plaintiff, and external rankings, Lasher has a notable record acting for complainants. A 2023 report by Patexia ranked him as the #1 most active attorney at the ITC and the #1 best performing attorney for complainants. While he has a strong record on the plaintiff side, his firm biography and practice descriptions note that he handles cases for both patent holders and accused infringers.

Lasher’s representation of Bissell Inc. in its dispute with Tineco Intelligent Technology Co., Ltd. is a prominent example of his work. The matter involved patent litigation concerning wet-dry surface cleaning devices across multiple venues, including a significant ITC investigation. This multi-jurisdictional effort led to a Federal Circuit decision in May 2026 affirming an ITC import ban on certain Tineco products found to infringe Bissell's patents. His extensive experience is focused on litigation before the ITC, an administrative body with procedures similar to PTAB proceedings.

According to his firm profile, Lasher received his J.D. from American University and a B.A. from the University of Virginia.