How does the U.S. handle non-English portions in PCT applications?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 10 Rules 3 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. The United States Patent and Trademark Office (USPTO) has made a notification of incompatibility regarding PCT Rules 20.1(c), 26.3ter(a), and 26.3ter(c), which allow for an international filing date to be accorded even when portions of an application are in a non-accepted language. According to MPEP 1803, “PCT Rules 20.1(c), 26.3ter(a) and 26.3ter(c) are not compatible with the national law applied by the United States Patent and Trademark Office (USPTO) as receiving Office. Thus, the USPTO has made a notification of incompatibility with respect to these rules pursuant to PCT Rules 20.1(d), 26.3ter(b) and 26.3ter(d).” This means that the USPTO does not apply these rules, and applications must be submitted entirely in English to receive a filing date. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse PCT Rules Not Compatible with USPTO National Stage Entry MPEP 1803 USPTO Not Accepting PCT Rules 20.1(c), 26.3ter(a), and 26.3ter(c) MPEP 1803 International Filing Date Despite Language Incompatibility MPEP 1803 U.S. Receiving Office Requires English Filings MPEP 1803 PCT Rules Not Applicable to USPTO Due to Incompatibility MPEP 1803 Prohibited PCT Rules Not Applicable to USPTO Due to Incompatibility MPEP 1803 Prohibited United States Reserves PCT Article 64(3) Not All Applications Published MPEP 1803 Publication Required for National Stage Applications MPEP 1803 No International Publication Required for US Designated PCT Applications MPEP 1803 Required U.S. Withdraws Reservation on PCT Chapter II MPEP 1803 Other Related FAQs 3 FAQs Collapse Where can I find complete information on U.S. PCT reservations and incompatibilities? What is the U.S. stance on international pu...