What form should I use to withdraw my international patent application or designations?

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.

To withdraw an international patent application, designations, or priority claims, you can use Form PCT/IB/372. This form is mentioned in MPEP 1859 and is designed to comply with the requirements of PCT Rule 90bis.

The MPEP states: “Form PCT/IB/372 may be used by the applicant to make a withdrawal under any of PCT Rules 90bis.1, 90bis.2, 90bis.3, and 90bis.4. The form is available from WIPO’s website (www.wipo.int/pct/en/forms/).“

Key points about using this form:

• It can be used for withdrawing the entire application, specific designations, or priority claims.
• The form must be signed by all applicants or their appointed agent.
• It should be submitted to the appropriate office (International Bureau, receiving Office, or International Preliminary Examining Authority) before the relevant deadlines.