Discover the potential of the EPO’s legal patent information: find out if and where a patent has been granted, if it is valid, if there is still time to challenge it and much more.

The European Patent Office (EPO) examines European patent applications, enabling inventors, researchers and companies from around the world to obtain protection for their inventions in up to 46 …

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.

The European Publication Server provides access to patent documents published by the European Patent Office.

If you wish to consult or appoint a professional representative, you can find one in our regularly updated database of professional representatives before the EPO.

From reading the other pages in this section you should know if your invention is patentable, if it is right for your business and if you are ready to file a patent application. You should also be aware of similar …

Today the EPO is Europe's second largest international public-service organisation. It employs some 6 300 people (4 000 of whom are highly specialised engineers working in three languages) from over …

Jan 1, 2026 · Use the Online Filing software to file EP, Euro-PCT and PCT applications and requests for unitary effect; submissions in opposition, appeal, limitation and revocation proceedings before the …

The full-text of international publications of Euro-PCT applications published by WIPO as of 2019 week 1 and not republished by the EPO is now searchable once the international publication has been …

EPO help and support with IP issues and access to a collection of resources such as publications, FAQ, forums, online services and software, and a glossary