Mattel, Inc v. The Partnerships and Unincorporated Associations Identified on Schedule A

Court

District Court, N.D. Illinois (N.D. Ill.)
Official Court Website →

Assigned judge

John F. Kness · 726 cases in index

Docket number

1:26-cv-02141

Cause

15:1125 Trademark Infringement (Lanham Act)
15 U.S.C. § 1125 — Trademark / unfair competition (Lanham Act)

Nature of suit

840 Trademark
Infringement or dilution of a trademark under the Lanham Act.

Jurisdiction

Federal Question

Jury demand

None

Date filed

02/25/2026

Date terminated

03/24/2026

8,039 Trademark cases in this court are indexed here.

Parties

• plaintiff · Mattel Inc · 224 cases
• defendant · The Partnerships and Unincorporated Associations Identified on Schedule A · 1708 cases

About Trademark Lawsuits

Trademark lawsuits allege infringement or dilution of a brand name, logo, or other mark under the Lanham Act — typically claims that one party's use is likely to confuse consumers about the source of goods or services.

Frequently Asked Questions

What is Mattel, Inc v. The Partnerships and Unincorporated Associations Identified on Schedule A?

Mattel, Inc v. The Partnerships and Unincorporated Associations Identified on Schedule A is a federal trademark lawsuit filed on 02/25/2026 in the District Court, N.D. Illinois. The case was terminated on 03/24/2026. Trademark lawsuits allege infringement or dilution of a brand name, logo, or other mark under the Lanham Act — typically claims that one party's use is likely to confuse consumers about the source of goods or services.

What type of case is this?

It is classified as “Trademark” under the federal nature-of-suit system. Trademark lawsuits allege infringement or dilution of a brand name, logo, or other mark under the Lanham Act — typically claims that one party's use is likely to confuse consumers about the source of goods or services.

What court is the case in?

The case is in the District Court, N.D. Illinois, docket number 1:26-cv-02141.

When was the case filed?

Mattel, Inc v. The Partnerships and Unincorporated Associations Identified on Schedule A was filed on 02/25/2026. It was terminated on 03/24/2026.

What law is the case brought under?

The docket lists the cause as 15 U.S.C. § 1125 — Trademark / unfair competition (Lanham Act).