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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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Asian patent information services brochure has been updated

A brochure with an overview of all Asian patent information services offered by the EPO was first released in 2012. An updated version has now been published in PDF format. If you have any questions about these services, please contact

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