IPC is a patent classification method adopted by Europe, America and Japan. Chinese patents are not classified according to this classification method. Is this sentence right or wrong? Thank you!

Wrong~~

The "International Patent Classification" (IPC Classification) is compiled based on the "Strasbourg Agreement on International Patent Classification" signed in 1971. It is currently the only An internationally accepted patent document classification and retrieval tool. my country's invention and utility model patents also adopt the IPC classification.