Harry Potter Trademark Infringement Lawsuit: Warner Bros. Schedule A Case No. 1:26-cv-12045
Warner Bros. Entertainment Inc. Files a Federal Trademark Lawsuit on September 30, 2026, in the Northern District of Illinois – Harry Potter Brand Claims, Amended Complaint, Schedule A Defendants, and Docket Updates
Warner Bros. Entertainment Inc. filed a federal trademark infringement lawsuit on September 30, 2026, in the U.S. District Court for the Northern District of Illinois. The lawsuit reportedly concerns alleged infringement of trademark rights associated with Harry Potter, the internationally recognized fantasy entertainment franchise.
The lawsuit initially identified defendants through Schedule A, a format commonly used in intellectual property enforcement actions involving multiple online sellers and e-commerce businesses.
Court records show that Warner Bros. subsequently amended its complaint on October 6, 2026, naming a specific defendant, King in BOOK, in place of the original Schedule A defendants.
Third-party reporting associates the case with Harry Potter. The specific trademarks, allegedly infringing merchandise, and legal claims should be confirmed through the complaint and supporting exhibits.
This is a separate proceeding from other Warner Bros. Schedule A lawsuits filed during 2026.
Case Information
Plaintiff: Warner Bros. Entertainment Inc.
Original Defendants: The Partnerships and Unincorporated Associations Identified on Schedule A
Defendant Named in Amended Complaint: King in BOOK
Court: U.S. District Court for the Northern District of Illinois
Case No.: 1:26-cv-12045
Date Filed: September 30, 2026
Presiding Judge: Hon. Edmond E. Chang
Nature of Action: Trademark Infringement – 15 U.S.C. § 1114 (Lanham Act)
Reported Entertainment Property: Harry Potter (subject to confirmation)
Plaintiff's Counsel: Martin F. Trainor, Victor Benjamin Chahin Jr., Sydney Paige Fenton, and Alexander Whang
Case Update: On September 30, 2026, Warner Bros. Entertainment Inc. filed its federal trademark infringement complaint with five supporting exhibits and submitted Schedule A identifying defendants under seal.
The plaintiff also filed a motion requesting permission to submit certain documents under seal, a Notice of Claims Involving Trademarks, and related administrative filings.
On October 1, 2026, the case was assigned to Judge Edmond E. Chang.
On October 6, 2026, Warner Bros. filed an amended complaint naming King in BOOK as defendant. The original Schedule A defendants were terminated from the case caption. The plaintiff also withdrew its earlier motion for leave to file documents under seal.
A supplemental court activity tracker identifies an additional order concerning miscellaneous relief entered on October 23, 2026. The substance and effect of that order have not been independently confirmed.
The available records do not establish whether the lawsuit has reached a final disposition.
About the Plaintiff
Warner Bros. Entertainment Inc. is an American entertainment company associated with the production, distribution, and licensing of motion pictures, television programs, and other entertainment properties.
The company is widely recognized for its involvement in major film and television franchises, including Harry Potter, DC Comics adaptations, The Lord of the Rings, and other entertainment productions.
Harry Potter, based on the novels by J.K. Rowling, has developed into an internationally recognized entertainment franchise encompassing feature films, television projects, video games, themed experiences, and licensed merchandise.
The franchise features recognizable names, logos, characters, and fictional settings, including Harry Potter, Hogwarts School of Witchcraft and Wizardry, and the Hogwarts house names.
Branding associated with the franchise appears on officially licensed merchandise, including apparel, collectibles, toys, accessories, stationery, and home products.
Warner Bros. participates in the production, distribution, and licensing of entertainment products associated with the franchise.
Through this lawsuit, Warner Bros. asserts trademark rights against a defendant allegedly involved in unauthorized commercial use of protected branding.
The particular trademarks, registrations, intellectual property ownership interests, and accused merchandise should be verified through the complaint and supporting evidence.
Monitor the Case
Public case information for Warner Bros. Entertainment Inc. v. The Partnerships and Unincorporated Associations Identified on Schedule A, subsequently amended to name King in BOOK, Case No. 1:26-cv-12045, is available through PacerMonitor.
PacerMonitor provides access to federal court case information, although certain documents and features may require registration or payment. Court filings and case status may change over time.
The October 6 amendment changed the named defendant. That procedural change does not, by itself, establish that the entire lawsuit was dismissed or resolved.
The allegations are claims made by the plaintiff and do not, by themselves, establish liability.
Named in a Schedule A Lawsuit?
If your online store or business has been identified as a defendant in a Schedule A lawsuit, Rotek Law can assist in reviewing the allegations, evaluating potential legal options, and discussing possible resolutions.
Our team can help you understand the claims against your business and determine appropriate next steps. You may also explore our legal services for more information about our intellectual property practice.
Contact Us: +1 (305) 731-2593 Email: info@roteklaw.com
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Disclaimer
This page is provided for general informational purposes only and does not constitute legal advice. Case information may change as court proceedings develop. Readers should verify current case details through official court records. Viewing this page or contacting Rotek Law does not establish an attorney-client relationship.
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