Tan v. Xianghuo

Court

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

Assigned judge

John J. Tharp Jr. · 431 cases in index

Docket number

1:25-cv-05003

Cause

28:1338 Patent Infringement
28 U.S.C. § 1338 — Patent, copyright & trademark jurisdiction

Nature of suit

830 Patent
Infringement of a patented invention.

Jurisdiction

Federal Question

Jury demand

Both

Date filed

05/06/2025

5,113 Patent cases in this court are indexed here.

Parties

• plaintiff · Tan · 115 cases
• defendant · Xianghuo

About Patent Lawsuits

Patent lawsuits allege infringement of a patented invention — that another party made, used, or sold a protected technology without authorization. These cases are common in technology and pharmaceutical industries.

Frequently Asked Questions

What is Tan v. Xianghuo?

Tan v. Xianghuo is a federal patent lawsuit filed on 05/06/2025 in the District Court, N.D. Illinois. The case is currently open in the federal court system. Patent lawsuits allege infringement of a patented invention — that another party made, used, or sold a protected technology without authorization. These cases are common in technology and pharmaceutical industries.

What type of case is this?

It is classified as “Patent” under the federal nature-of-suit system. Patent lawsuits allege infringement of a patented invention — that another party made, used, or sold a protected technology without authorization. These cases are common in technology and pharmaceutical industries.

What court is the case in?

The case is in the District Court, N.D. Illinois, docket number 1:25-cv-05003.

When was the case filed?

Tan v. Xianghuo was filed on 05/06/2025. The case is currently open.

What law is the case brought under?

The docket lists the cause as 28 U.S.C. § 1338 — Patent, copyright & trademark jurisdiction.