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Form

Request for a certified copy of a patent

Use this form to request a certificate of the Comptroller or a certified copy from a file or the register.

Updates to this page

From:
Intellectual Property Office
Published:
22 October 2015
Last updated:
1 April 2026
Show all updates

  1. Request for a certified copy of a patent fee updated for 1 the April 2026.

  2. A new end page has been added. This contains a checklist and sending instructions. Supporting text added to questions that required further clarification.

  3. Form PF23 fee sheet updated.

  4. E-mail address for sending the completed form has been added.

  5. Fee sheet added to Patents form 23 and text 'All Intellectual Property Office fee bearing forms should be filed with the appropriate fee' added.

  6. Patent Form 23: Data Privacy added.

  7. First published.

Documents

Request for a certified copy of a patent (Form 23)

PDF, 119 KB, 6 pages

Details

A certified copy is an official document, also called a certificate of the Registrar. You need a certified copy to:

  • register a piece of intellectual property (IP) outside the UK

  • prove legal ownership of IP, such as in a court case

Check if you need an uncertified copy instead.

Use a separate form for each patent application or patent.

All Intellectual Property Office fee bearing forms should be filed with the appropriate fee.

Cost

It costs £27 to request a certified copy of a document. You can upload the form to your intellectual property account or post it. Instructions are on the form

Certified office copies do not include grant or registration certificates.

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