On November 15, 2021, the Canadian Intellectual Property Office (CIPO) began classifying all new international patent applications by assigning the symbols of the Cooperative Patent Classification (CPC) system.
CIPO currently uses the International Patent Classification (IPC) system to classify and search for patent documents. It remains the international system recognized by the World Intellectual Property Organization. Going forward, CIPO will classify international patent applications with the symbols of both the IPC and CPC. The symbols will be searchable on CIPO’s patents database.
About the CPC
The CPC system started as a partnership between the European Patent Office and the United States Patent and Trademark Office when the offices agreed to develop a common classification system.
It was designed to be more specific than the IPC so that it can allow for faster and more accurate patent searching. So far, it has been adopted by more than 45 patent offices as a search and classification tool.
For more information, please visit the CPC website