Counsel registry

Stamoulis & Weinblatt

161 case appearances — 154 as plaintiff counsel · 7 as defendant counsel.

Firm overview

Stamoulis & Weinblatt: An Overview of the Firm's Patent Litigation Practice

Date: 2026-04-30
Prepared by: Senior US Patent Litigation Analyst

Stamoulis & Weinblatt LLC is an intellectual property and corporate litigation boutique based in Wilmington, Delaware, with a West Coast office in San Diego, California. The firm was established by attorneys with prior experience at major international law firms, including Fish & Richardson and O'Melveny & Myers. While not ranked in the AmLaw 100 or Chambers USA, the firm's partners have been individually recognized by publications such as Super Lawyers and Managing Intellectual Property. All of the firm's attorneys are registered to practice before the U.S. Patent and Trademark Office.

The firm's patent litigation practice primarily focuses on representing plaintiffs. According to its own description, it serves both practicing and non-practicing entities (NPEs). This plaintiff-side preference is consistent with available data, which shows the firm acting as lead counsel for plaintiffs in its tracked appearances. The firm frequently litigates in popular patent venues, including the U.S. District Courts for the District of Delaware and the Eastern District of Texas. The technologies involved in its cases are diverse, spanning software, computer hardware, electronics, telecommunications, and consumer products. In addition to its plaintiff-side patent work, the firm notes a practice representing generic pharmaceutical companies in ANDA litigation.

Recent representations highlight the firm's work for patent assertion entities. The firm is lead counsel for IOT Innovations LLC, identified as an NPE and an Empire IP entity, in a case filed in April 2026 against Schneider USA Inc. IOT Innovations has asserted patents related to IoT systems and device control against multiple companies. Stamoulis & Weinblatt also serves as lead counsel for ContentNexus LLC in a patent suit filed in April 2026 against JustWatch GMBH. Public information on a dedicated Patent Trial and Appeal Board (PTAB) practice is not readily available, and the firm's primary focus appears to be on district court litigation.

The practice is led by its name partners, Stamatios Stamoulis and Richard C. Weinblatt. Both attorneys have over two decades of experience in intellectual property law. Prior to co-founding the firm, both were attorneys at the prominent IP firm Fish & Richardson P.C. Mr. Stamoulis also previously practiced at O'Melveny & Myers. Mr. Weinblatt has argued numerous appeals before the U.S. Court of Appeals for the Federal Circuit and secured a notable reversal of a district court's dismissal on Section 101 grounds in Visual Memory, LLC v. NVIDIA Corp.

Attorneys

Roles

  • lead counsel139
  • local counsel63
  • Lead Counsel47
  • of counsel20
  • Local Counsel20
  • Lead Counsel / Local Counsel6
  • Of Counsel6
  • counsel3
  • lead counsel / local counsel2
  • Counsel2
  • Likely Lead Counsel & Local Counsel2
  • Delaware Counsel2
  • lead local counsel2
  • Local Counsel (probable)2
  • Delaware counsel1
  • Lead Local Counsel1

Cases (161)