# The Patents Rules 2007, Article 65: Filing of international applications at the Patent Office


(1) An international application for a patent filed at the Patent Office as a competent receiving Office under the Patent Co-operation Treaty must be filed in English or Welsh.
(2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(3) Where the Patent Office was acting on behalf of the International Bureau as the receiving Office, the comptroller shall only transmit an international application for a patent filed at the Patent Office to the International Bureau and the International Searching Authority after the appropriate fee has been paid.
(4) A request under the Treaty for a certified copy of an international application for a patent (including any corrections to that application) filed at the Patent Office as the competent receiving Office must be filed on Patents Form 23.

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Source: https://www.legislation.gov.uk/uksi/2007/3291/article/65 (the official version)
Page: https://openlegislation.uk/patents-rules-2007/article-65
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.