Patent litigation attorney

Stamatios Stamoulis

149 tracked appearances — 145 plaintiff · 4 defendant.

Specialty & background

Professional Summary: Stamatios Stamoulis

Updated: 2026-04-30

Stamatios "Stam" Stamoulis is a founding member of Stamoulis & Weinblatt LLC, a Wilmington, Delaware-based firm focused on intellectual property litigation. His practice centers on representing patent holders in federal district courts, with a significant emphasis on litigation in the District of Delaware and the Eastern District of Texas. The firm's stated technology areas include software, computer hardware, electronics, telecommunications, and consumer products. Mr. Stamoulis has prior experience in the intellectual property groups of prominent national firms, including Fish & Richardson P.C. and O'Melveny & Myers LLP.

The authoritative case list and the firm's public profile show a practice that is exclusively plaintiff-side. Stamoulis & Weinblatt is regularly identified as a "go-to law firm for patent litigation plaintiffs" and represents both practicing and non-practicing entities. The two recently filed matters where Mr. Stamoulis is listed as lead counsel, IOT Innovations LLC v. Schneider USA Inc and ContentNexus LLC v. JustWatch GMBH, involve plaintiffs that have been identified in legal industry reporting as patent assertion entities. In 2018, Managing Intellectual Property reported that Mr. Stamoulis was the most active attorney for plaintiffs in U.S. district court patent cases, having been involved in 171 cases in the first half of that year.

While the two tracked cases were filed in April 2026 and have no public outcomes, Mr. Stamoulis has experience in appellate proceedings, having argued before the U.S. Court of Appeals for the Federal Circuit. All attorneys at his firm are registered to practice before the U.S. Patent and Trademark Office, though public records do not indicate a focus on PTAB or IPR proceedings for Mr. Stamoulis himself.

Mr. Stamoulis earned his law degree from Rutgers School of Law - Newark in 1999 and holds an H.B.A. in Chemistry and Political Science from the University of Delaware. He is licensed to practice in Delaware.

Firms

Roles

  • lead counsel70
  • local counsel30
  • Lead Counsel21
  • Local Counsel10
  • of counsel5
  • Lead Counsel / Local Counsel3
  • lead counsel / local counsel1
  • Of Counsel1
  • Counsel1
  • counsel1
  • Likely Lead Counsel & Local Counsel1
  • Delaware Counsel1
  • additional counsel1
  • Lead Local Counsel1
  • lead local counsel1

Cases (149)