In July 2026, the USPTO changed the rules for companies based outside the United States. Broadly, those companies now have to work through a USPTO-registered patent practitioner for most of what they send to the Office, but what the change means in practice has been much harder to pin down.
Some law firm alerts have called it a housekeeping measure that changes almost nothing day to day. Others have described it as an urgent problem, with pending applications exposed and some mistakes impossible to undo. Fundamentally, whether it is a formality or a genuine risk for your company comes down to a single line buried in your own filings, one that most founders have never had a reason to look at.
Here is what the USPTO ruling actually changed and what a non-U.S. company should do about its filings.
What happened in the July 2026 USPTO ruling on foreign patent applicants?
The USPTO issued a final rule in March 2026 that took effect on July 20. It requires applicants and patent owners based outside the U.S. and its territories to be represented before the Office by a registered patent practitioner, meaning a patent attorney or patent agent licensed to practice at the USPTO.
Whether it affects a particular company depends on four things.
The test is where the company operates, not anyone's citizenship
The rule depends on domicile. For a company, that means its principal place of business, the country it actually runs from. For an individual, it means their permanent legal residence.
Nationality is irrelevant either way: an American founder running her company out of Lisbon is foreign-domiciled under this rule, and a German citizen whose company operates from Austin is not.
The USPTO normally takes domicile from the application data sheet or the inventor's declaration, and has said it may check other sources if something looks off.
Only the applicant's domicile counts
Every U.S. application names an applicant, the party formally requesting the patent, and that name is set on the application data sheet filed with the application. It can be the company or it can be the inventors as individuals. That field, and only that field, determines whether the rule applies.
If your inventors are not the applicant, where they live is irrelevant. If a parent company owns the invention but is not named as the applicant, its location is irrelevant too.
In a group of applicants, one foreign party covers the entire application
Where two or more people or companies are named as an applicant together, representation is required if any one of them is foreign-domiciled. A U.S.-based co-applicant does not offset a foreign one.
What matters is the date on the document, not the date of the application
The requirement applies to anything the USPTO receives on or after July 20, 2026, regardless of when the application was originally filed. Nothing is grandfathered. A family opened in 2019 is covered for every document filed in it from that date forward, while documents filed before July 20 are unaffected even if the examiner reviews them later.
So who does the rule actually affect?
Put those four conditions together and the picture for most companies is calmer than the fearmongering implies.
If your company is named as the applicant
Nothing changes for you. Companies, as opposed to individual people, have had to be represented by a licensed practitioner since 2012, when the USPTO implemented the inventor's declaration provisions of the America Invents Act.
If your filings already list a U.S. practitioner, which the large majority of foreign-origin applications do, you were compliant before July 20 and you are compliant now. The rule restates an obligation you were already meeting.
If your founders are named individually as the applicant
This is the group the rule actually reaches, and it is more common among early-stage companies than founders realize. Sometimes a low-cost filing service defaulted to naming individuals.
Either way, those applications carried no representation requirement before and they do now. If this is you, the next document you file in any of those applications needs a practitioner's signature.
If your founding team is split across countries
One foreign-domiciled co-applicant pulls the whole application in, even if the others are U.S.-based and even if the foreign co-founder holds a minority interest. A U.S. co-applicant does not offset it, so a team with three American founders and one in Bangalore is covered.
If you already hold issued U.S. patents
The rule covers patent owners, not just applicants, so a foreign company with granted U.S. patents is within scope. In practice the effect is narrow, because maintenance fee payments and assignment recordings are both exempt. What is caught is everything else you might file against an issued patent: certificates of correction, disclaimers, reissue applications.
If your patent attorney at home has been dealing with the USPTO directly
That stops. A European or Japanese patent attorney can continue coordinating your portfolio, but they can no longer sign documents going to the USPTO on your behalf.
What happens if you file without a registered patent practitioner?
An application filed without the right signature still receives its filing date. It does not disappear, and the rule did not change the requirements for getting a filing date at all. What changes is what happens to the documents afterward. A document that needs a practitioner's signature and lacks one may never be accepted into the file, which means it has no effect even though you filed it.
Where the USPTO determines that representation is required and has not been provided, it can mail a notice saying so, and the Office has given the example of a Notice of Missing Parts flagging an application data sheet that was not properly signed. That notice is the point at which most companies will discover they are affected.
If the USPTO has your domicile wrong, you can contest it. An applicant who believes the determination is mistaken can reply and address the domicile question directly. This is worth knowing about, because a company incorrectly flagged as foreign-domiciled has to respond to a notice about representation while arguing it does not need representation.
How much damage the gap does depends on which document was rejected. Some defects are curable later with a corrective filing. Others are not, and certain requests can be permanently foreclosed once the window for making them has closed. The documents that carry your priority claim or your inventor list are the ones to worry about, because a filing date sitting on top of a priority claim that was never accepted is worth much less than it looks like on your docket.
Can a foreign company still file a U.S. patent?
Yes, and nothing in the July rule narrows that. A company headquartered in Berlin, Toronto, Bangalore, or Seoul can file U.S. applications, see them through to granted patents, and own those patents outright. Nothing in U.S. patent law ties eligibility to nationality, residency, or having an address in the country. The rule governs who signs, and nothing else: a foreign company can still be named as the applicant, still owns any patent that results, and still pays the same USPTO fees a domestic company pays.
There are two ways in, and the choice usually comes down to whether you have already filed at home.
File with the USPTO first. Common when the U.S. is the primary market and something is coming up: a launch, a demo day, a customer pilot, a funding round. The U.S. filing date becomes your earliest date.
File at home first, then claim that date in the U.S. within twelve months. The Paris Convention, which nearly every country with a patent system has signed, lets you carry your original filing date over. A Canadian robotics company that filed with the Canadian patent office in March has until the following March to bring the same invention to the USPTO with its original date intact.
Keep in mind that U.S. law gives inventors a twelve-month grace period after they publicly disclose their own invention, so a demo or a paper does not immediately end the possibility of a U.S. patent. Many major patent jurisdictions do not offer the same broad grace period. In Europe and many Asian jurisdictions, public disclosure before filing can jeopardize patent rights. So, a company that presented at a conference in Munich before filing anywhere may still have a viable U.S. application and no European one.
Do you need a U.S. entity or subsidiary to file a U.S. patent?
No. A foreign parent company can be named as the applicant without setting up anything in the United States. There is no requirement for a U.S. address, a U.S. bank account, or a registered agent.
The follow-up question is usually whether creating one (e.g., standing up a Delaware subsidiary) would help sidestep the representation requirement. It would not, for the reason covered above: any company named as an applicant needs a licensed practitioner regardless of where it is based.
Does a foreign company need a U.S. patent attorney, or will a patent agent do?
A patent agent is enough for ordinary patent preparation and prosecution. You do not need to hire a patent attorney simply because your company is based outside the United States.
What is a registered patent practitioner?
The rule asks for a registered patent practitioner. That covers registered patent attorneys, registered patent agents, and a narrower group holding what the USPTO calls limited recognition, a restricted permission to practice granted in specific circumstances.
Patent agents are not lawyers, but they pass the same USPTO registration exam as patent attorneys and can prepare, file, and argue an application all the way through to grant. What they cannot do is represent you in court or advise on legal questions outside patent prosecution, such as infringement opinions or licensing terms. For a company that wants applications drafted and filed, that gap rarely bites.
Who cannot sign for a foreign company
Two categories to know about:
- A U.S. lawyer who is not registered at the USPTO. General corporate or litigation credentials do not qualify someone, however senior. Registration is a separate credential with its own bar exam.
- Your patent attorney at home. A European or Japanese patent attorney handling your domestic filings cannot sign your U.S. documents. Foreign counsel remains valuable for coordinating a portfolio across countries, but the U.S. paperwork needs a U.S.-registered signature.
How to choose a U.S. patent practitioner
The USPTO puts no geographic requirement on the practitioner, so you are not limited to firms within any particular state.
When doing your research, don't over-weight an exact degree match. For many software, hardware, and materials inventions, substantial drafting experience in adjacent technical fields can matter more than having an academic background that matches the invention perfectly.
Patentext takes a different approach from hiring an individual practitioner matter by matter. Companies use the platform to develop the invention and technical record first, then approved matters move directly into drafting with a USPTO-registered practitioner from Patentext Services. That means the practitioner starts with a much stronger disclosure, while your company gets a repeatable process for future inventions instead of rebuilding the workflow around each new filing.
Does the new rule apply to provisional patent applications?
Yes. Foreign-domiciled applicants are subject to the new representation requirement for provisional applications too.
There is one important wrinkle: an unrepresented foreign applicant can still receive a filing date for a provisional application. Because provisionals are not examined, the USPTO may not raise any representation issue while the application simply sits pending.
That does not mean the company can handle the rest of the process itself. Other papers filed in the provisional may require a registered practitioner's signature, and any later non-provisional application claiming priority to it will also need proper representation.
For foreign companies, this makes it even more important to treat the provisional as a real patent application rather than a placeholder. No examiner reviews it during the 12-month provisional period. If the disclosure does not adequately describe the invention you later want to claim, that problem may only become obvious when the non-provisional is being prepared and the original filing date suddenly matters.
The filing date is only as valuable as the disclosure supporting it.
How should a foreign company file a U.S. patent application now?
For foreign companies, the new rule creates two immediate tasks: check any U.S. applications already pending, then make sure new filings are set up correctly from the start.
Start with applications already on file
Review your pending U.S. applications and confirm who is representing the applicant before the next USPTO deadline arrives.
An existing application does not automatically go abandoned because a foreign-domiciled applicant did not already have a registered practitioner attached when the rule took effect. But new correspondence may now require a practitioner's signature. The practical risk is discovering that problem when an amendment, response, or other deadline is already approaching.
If you have several pending applications, this is worth checking across the portfolio rather than waiting for each matter to surface on its own.
For new filings, build representation into the process from the beginning
The actual act of filing is usually the easy part. More work happens before anything reaches the USPTO.
The company first has to decide which technical work is worth protecting and develop the invention in enough detail to support a useful application. Inventorship and ownership also need to be handled correctly. For a foreign-domiciled applicant, a USPTO-registered practitioner should now be part of that process before papers requiring representation are submitted.
From there, the company can decide whether a provisional or non-provisional application makes sense based on the invention, timing, and broader filing strategy.
This is where an ad hoc approach gets expensive in time as well as money. If every invention starts with finding counsel, completing intake, negotiating an engagement, and reconstructing the technical context from scratch, the patent process tends to begin well after the underlying engineering work happens.
Patentext is designed to make that process continuous instead. Companies use the platform to surface potentially patentable work, develop promising inventions while the details are still fresh, and decide what is worth pursuing. Approved inventions then move into applications prepared and filed by USPTO-registered practitioners.
Companies based outside the United States can use the same process for U.S. filings. Patentext charges a flat $3,600 for a provisional patent application and $5,700 for a non-provisional application, with USPTO fees included. There is no separate U.S. law-firm relationship to assemble before a matter can move forward.
Disclaimer: This article is for informational purposes only and does not constitute legal advice. Patent laws are complex and vary by jurisdiction. For personalized guidance, consult a qualified patent attorney or agent.
