The Intellectual Property Offices of all provinces, autonomous regions, municipalities directly under the Central Government and Xinjiang Production and Construction Corps, the Sichuan Provincial Intellectual Property Service Promotion Center, and relevant local centers; all departments of the State Intellectual Property Office, all departments of the Patent Office, the Trademark Office, and other directly affiliated units of the State Intellectual Property Office, all Social groups:

The "Green Technology Patent Classification System" compiled is now issued to you. Please refer to it in your work based on your actual situation.

Notice is hereby given.

Office of CNIPA

August 23，2023