Discussion forum

Talk to EPO experts or other users

Visit the Asian Patent Information Services forum

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.
You can complete the survey in English, German or French language

Take the survey


China: QR code added to front page of Chinese documents

The State Intellectual Property Office of China (SIPO) added a QR code to its published patent, utility model and design documents in January 2014. The QR code replaces the previous bar code, which could be found on the top right-hand corner of the documents since April 2010. When the QR code of a document is scanned with a mobile app, the bibliographic data from SIPO's patent gazette in Chinese language will be displayed on the device. Furthermore, the full document can then also be accessed via a direct link.

Quick Navigation