Robert P. Greenspoon

Robert P. Greenspoon is a patent litigator with a focus on complex cases involving computer software, electronics, and related technologies. Currently a Partner in the Chicago office of Dunlap Bennett & Ludwig, he was previously a founding member of Flachsbart & Greenspoon, LLC. His practice encompasses district court litigation, proceedings before the Patent Trial and Appeal Board (PTAB), and extensive appellate work at the U.S. Court of Appeals for the Federal Circuit.

Based on tracked appearances, Greenspoon exclusively represents patent holders. His work often involves asserting patent rights for inventors and licensing entities against large technology companies. In X One, Inc. v. Uber Technologies, Inc., he served as lead counsel for the plaintiff in a case involving location-sharing technology patents; after an initial PTAB victory for the patent owner, the Federal Circuit ultimately found the claims obvious. He also represented patent-holding company IOT Innovations LLC in its suit against Alphabet Inc.

Greenspoon has a significant and successful record as an appellate advocate before the Federal Circuit, having argued numerous winning appeals for patentees. Notable victories include arguing for the reversal of an inequitable conduct finding in 1st Media, LLC v. Electronic Arts, Inc., securing the vacatur of adverse IPR decisions in D'Agostino v. MasterCard Int'l Inc., and successfully defending a "high-eight figure" jury verdict on appeal in Adasa Inc. v. Avery Dennison Corp. His biography confirms his experience representing clients in PTAB challenges, such as IPRs.

He earned his J.D. from the University of Michigan Law School and an A.B. in Physics and the History and Philosophy of Science from the University of Chicago. He is a registered patent attorney and a member of the Illinois bar.