Why a foreign applicant needs a US-registered practitioner

Who the USPTO representation requirement applies to, what it prevents a foreign attorney from doing, and how to comply.

Practice before the USPTO is restricted to attorneys and agents on the USPTO’s own register, and current rules require an applicant whose domicile is outside the United States to be represented by such a practitioner to prosecute an application. The requirement turns on the applicant’s domicile rather than the inventor’s nationality. It does not stop a foreign attorney from advising on strategy or coordinating the work; it stops them from signing and filing the reply at the USPTO unless they are registered there.

Is this a real rule or a way of selling me American lawyers?

It is a real rule, and the citations are below so you can read it yourself rather than take our word for it.

It is also narrower than it sounds. It governs who may represent an applicant before the Office. It does not govern who may read your document, explain it, or help you decide what to do.

Who it applies to

It turns on the domicile of the applicant — normally the company or individual that owns the application.

A US-domiciled applicant is unaffected, even where the inventors are foreign nationals.

A foreign-domiciled applicant is affected, even where the inventors live in the United States.

Being represented by a foreign patent attorney does not satisfy it unless that person is on the USPTO register.

How to comply without disrupting your existing advisers

The usual arrangement is that a US-registered attorney or agent is appointed of record and files, while your existing adviser continues to run strategy and hold the client relationship. This is routine work for both sides and does not require you to move the portfolio.

What causes trouble is discovering the requirement in the last week of a reply period. If your application is being prosecuted from outside the United States without a registered representative, resolve it before the next deadline arrives.

Start with the document and the date

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Questions people ask

Only in narrow circumstances under 37 C.F.R. 11.14, and not as a general route for prosecuting a US application. For ordinary prosecution, representation must be by a registered US attorney or agent.

Not where the applicant is domiciled outside the United States, because the requirement attaches to the applicant. A pro se filing in that situation does not satisfy the rule.

The USPTO publishes a searchable register of attorneys and agents, linked below. Registration is the minimum; relevant technical experience in your field is what makes the difference in practice.

Where this comes from

Every statement of law or procedure on this page traces to a primary source you can check yourself.

You are outside the United States and you received a USPTO Office Action

What the US representation requirement means for applicants outside the United States, how deadlines work across time zones, and what to do first.

Responding to a USPTO Office Action

What a response to a USPTO Office Action involves, what it costs, what the deadline is, and how to start with the document you already have.

How your Office Action deadline is calculated

The reply period runs from the mailing date. How the three-month and two-month periods work, what extensions buy, and the six-month wall.