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Rule2026-05564

Required Use by Foreign Applicants and Patent Owners of a Patent Practitioner

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published
March 20, 2026
Effective
July 20, 2026

Issuing agencies

Commerce DepartmentPatent and Trademark Office

Abstract

The United States Patent and Trademark Office (USPTO or Office) is amending the Rules of Practice in Patent Cases to require patent applicants and patent owners whose domicile is not located within the United States (U.S.) or its territories (hereinafter foreign applicants/inventors and patent owners) to be represented by a registered patent practitioner. A requirement that foreign applicants/ inventors and patent owners be represented by a registered patent practitioner will bring the U.S. in line with most other countries that require that such parties be represented by a licensed or registered person of that country. Additionally, this requirement will increase efficiency and enable the USPTO to more effectively use available mechanisms to enforce compliance by all foreign applicants/inventors and patent owners with U.S. statutory and regulatory requirements in patent matters, and enhance the USPTO's ability to respond to false certifications, misrepresentations, and fraud.

Indexed from Federal Register on March 20, 2026.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.