New 2026 USPTO Rule: Foreign Inventors Now Need a U.S. Registered Patent Agent

As of July 20, 2026, if you live outside the United States you can no longer file or prosecute your patent before the USPTO on your own. The new federal rule requires every patent applicant or owner domiciled outside the U.S. to be represented by a patent practitioner registered with the USPTO. At Patentes USA, that is exactly what we offer: official representation before the USPTO, in your language, from any country.

 

What does the new USPTO rule say?

On March 20, 2026, the United States Patent and Trademark Office (USPTO) published a final rule (91 Fed. Reg. 13510) amending the Rules of Practice in Patent Cases. Its key points:

• Who it applies to: any individual or company whose permanent residence or principal place of business is outside the United States or its territories. If at least one applicant is foreign, the entire application is subject to the rule.

• When it takes effect: it applies to every document filed on or after July 20, 2026, in new applications as well as pending applications and issued patents.

• What changes in practice: the USPTO will not enter into the record amendments, responses to Office actions, information disclosure statements (IDS), petitions or application data sheets (ADS) that are not signed by a registered practitioner.

• The real risk: although it is still possible to obtain a filing date, critical items such as priority claims, inventorship corrections and micro entity certifications may not be recognized without a registered practitioner's signature. Some steps that must be taken at the time of filing can be lost permanently if done incorrectly.

In other words: filing your U.S. patent “on your own” (pro se) from abroad is no longer an option. And getting it wrong can cost you rights you thought were secure.

 

Why did the USPTO make this change?

The USPTO cited three reasons: aligning the United States with the practice of nearly every major patent office in the world (the European Patent Office, Japan and China already require local representation for foreign applicants), improving the quality of filings, and strengthening safeguards against false certifications and fraud, particularly in micro and small entity status claims. Registered practitioners are bound by the USPTO Rules of Professional Conduct and subject to its disciplinary authority — that is the assurance the Office now requires for every foreign applicant.

 

What does this mean for you as an inventor outside the U.S.?

If you are an inventor, entrepreneur or company in Latin America, Spain or any other country and want to patent in the United States, you are now required to have a USPTO-registered patent agent to:

• File a provisional or non-provisional patent application in the United States

• Enter the U.S. national phase of a PCT application

• Respond to examiner Office actions

• File inventor declarations, application data sheets (ADS) and entity status certifications

• Correct, maintain or manage an issued U.S. patent

 

Why Patentes USA is the right representative for you

Official representation before the USPTO. I am Mariana Vernieri, a patent agent registered with the USPTO (Registration No. 77275), federally authorized to prepare, sign, file and prosecute patent applications before the United States Patent Office — exactly the role the new rule requires. Patent agents pass the same federal exam as patent attorneys and have identical authority before the USPTO for patent prosecution.

 

Full service in English and Spanish. I work with Spanish-speaking inventors every day. You explain your invention in your language; I turn it into a strong English-language application before the USPTO and keep you informed at every stage. No middlemen, nothing lost in translation, no endless calls to offices in another time zone.

 

Engineering background. The USPTO requires a scientific or technical background to sit for its registration exam. In patents, understanding the invention is half the work: I speak the language of your technology, not just the language of the forms.

 

Experience with international inventors. I know the typical challenges foreign inventors face: coordinating PCT and Paris Convention deadlines, properly verifying micro or small entity status (now under closer USPTO scrutiny), first-filing requirements in your home country, and budgeting for the entire process — not just the first step.

 

Clear, upfront fees. Fixed prices for defined engagements, USPTO official fees at cost, and no surprises. Before you pay anything, you know exactly what it costs and what it includes.

 

Services for inventors and companies outside the United States

• Filing provisional applications with the USPTO

• Drafting and filing non-provisional (utility patent) applications

• U.S. national phase entry for PCT applications

• Taking over applications left without a practitioner under the new rule (power of attorney, customer number, missing documents, fee payments)

• Responding to examiner Office actions

• Patentability studies and prior art searches

• Design patents and international protection strategy

 

Already filed your application on your own before the rule?

This is the most urgent situation. If you filed your application pro se and it is still pending, any document you need to file from now on requires a registered practitioner's signature — otherwise the USPTO will not enter it into the record and deadlines will keep running. I can take over representation of your pending application through a limited or general power of attorney, cure any missing documents and continue prosecution without losing your priority date.

 

Frequently asked questions

Is a patent agent the same as a patent attorney?

Before the USPTO, yes: both pass the same federal registration exam and have the same authority to file and prosecute patent applications. The difference arises outside the USPTO (court litigation, contracts), where an attorney is required — and for those matters I work alongside trusted patent attorneys.

Does the rule apply even if my application was filed before July 2026?

Yes. The rule applies to every document filed on or after July 20, 2026, regardless of when the original application was filed.

Can I at least get a filing date without a representative?

In some cases, yes, but it is risky: priority claims, entity status certifications and other critical items may not be recognized, and certain steps that must be taken at filing can be lost permanently. The safe approach is to file with a registered practitioner from the start.

Does paying maintenance fees also require a representative?

No. Maintenance fees for issued patents can still be paid by anyone on behalf of the patent owner.

Do you work with clients from any country?

Yes. I work remotely with inventors and companies throughout Latin America, Spain and the rest of the world, in English and Spanish.

 

Ready to protect your invention in the United States?

Contact me to schedule an initial consultation. I will run a conflict check at no cost and give you a fixed price before we begin.

» Request a consultation: info@patentesusa.com