What are the main classification systems used in international patent law?
According to the MPEP 902, there are multiple classification systems used throughout the international patent system. These include:
- Cooperative Patent Classification System (CPC)
- U.S. Patent Classification System (USPC)
- International Patent Classification System (IPC)
- Locarno International Classification (Locarno)
The MPEP states: “There are multiple classification systems used throughout the international patent system. These include the Cooperative Patent Classification System (CPC), U.S. Patent Classification System (USPC), the International Patent Classification System (IPC), and the Locarno International Classification (Locarno).”
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