Related documents

The EPO as PCT Authority

English (PDF, 134 KB)
Spanish (PDF, 118 KB)
Japanese (PDF, 310 KB)

The EPO as Supplementary International Searching Authority

English (PDF, 210 KB)
Chinese (PDF, (341 KB)
Japanese (PDF, 346 KB)

Useful links

For more information about the PCT, please visit the WIPO website.


The IP5 collaborative search and examination pilot project was launched on 1 July 2018.

If you are interested in participating, please read the related EPO notice OJ EPO 2018, A95

Want to learn more about the PCT procedure at the EPO?

More events


International applications (PCT)

International route (JPG)

Applicants seeking worldwide patent protection may use the services of the EPO under the Patent Cooperation Treaty (PCT). PCT applications may be filed, searched and examined at the EPO.

Why choose the EPO?

Users rely on our quality for their important business decisions. Watch a video on the quality of our work:


See what our examiners have to say about our comprehensive search reports and their wide global scope:


Euro-PCT Guide 

A guide for applicants interested in filing an international patent application with the EPO as a receiving office. It also covers procedures before the EPO as an international authority under the PCT and gives information about entry into the European phase.

EPO decisions and notices

A collection of links to important decisions and notices from the EPO related to the PCT procedure.

Filing options

International applications can be filed with the EPO as receiving office: 

PCT resources

Links to legal provisions and other resources, including forms, made available by the World Intellectual Property Organization

PCT forms and fees

Links to forms and information on fees for the PCT procedure.

Extension/validation request

At the request of the applicant, international patent applications entering the European phase may be extended to or validated in third countries for which an extension or validation agreement has entered into force.

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