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Are you familiar with Y02/Y04S?

If you are a user of the Y02/Y04S classification scheme for climate change mitigation technologies, we invite you to participate in a short survey. It will only take a few minutes of your time and your answers will help us to improve the scheme further.
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European Patent Register

The European Patent Register contains all the publicly available information on European patent applications as they pass through the grant procedure, including oppositions, patent attorney/EPO correspondence and more. This service also provides for public file inspection.

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Getting started

Learn more about the European Patent Register in this introductory video. 

European Patent Register

Learn how to use the European Patent Register and Register Alert through our collection of 25 interactive e-learning modules.


Search for patents on your mobile

You can now conduct a patent search in the EPO's databases - the world's largest free collection of technical information - on the move, using your smartphone, as the EPO has added mobile beta versions of Espacenet and the European Patent Register to its small-screen optimised website,

Did you know that... can use truncation symbols, also known as "wildcards", to broaden your searches? There are three different ones:

  • * stands for a string of characters of any length
  • ? stands for no characters or one character
  • # stands for exactly one character

You have to follow certain rules and be aware of certain restrictions when using these characters for your search. Find out more in our Help section.

The Federated European Patent Register Service (“Federated Register”)

The Federated European Patent Register Service, available from within the European Patent Register, collects data from the designated contracting states "on the fly" and assembles it in a single display.  

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Help us to continue improving the services of the European Patent Register and Register Alert applications by giving us your feedback.

GPI - Global Patent Index 

Need to search in patent legal status from other authorities at the same time? Why not have a look at GPI

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