USPTO Rule: Foreign Filers Require U.S. Attorneys by 2026
Foreign patent applicants must hire U.S. attorneys starting July 18, 2026.
Why it matters: This rule shifts patent strategies globally, increasing compliance costs for foreign businesses seeking U.S. patents.
- Rule effective July 18, 2026, mandates U.S. attorney for foreign filers.
- Foreign applicants were 57.9% of 2022 patent filings.
- Affects 1,102 foreign small entities filing as 'pro se.'
- Aims to reduce errors and fraud in patent applications.
Starting July 18, 2026, foreign patent applicants will be required to hire registered U.S. patent attorneys. The USPTO announced this rule on March 20, 2026, aligning with global norms.
Previously, some foreign applicants filed as "pro se," without professional representation, comprising a significant portion of filings. In 2022, foreign entities were responsible for 57.9% of U.S. patent filings, based on data from the National Law Review.
This change directly affects 1,102 small foreign entities previously filing without U.S. legal counsel, potentially impacting their operations due to increased compliance costs and procedural changes, according to Federal Register. The rule aims to streamline filing processes and minimize errors and fraudulent activities associated with foreign patents.
While it increases quality control in submissions, some critics argue it could pose additional financial burdens and logistical challenges for smaller foreign entities entering the U.S. market.
By the numbers:
- 57.9% — Foreign applicants' share of 2022 U.S. patent filings.
- 1,102 — Foreign small entities affected by the new rule.
Yes, but: Critics warn of potential financial burdens for smaller foreign entities.