What are the main sections of the CPC system?
The Cooperative Patent Classification (CPC) system is organized into nine main sections, each covering broad technological areas. As stated in MPEP 905.03(a), “The CPC is a detailed classification system, containing about 250,000 classification symbols, and is divided into nine sections.” These sections are: A: Human Necessities B: Performing Operations; Transporting C: Chemistry; Metallurgy D: Textiles;…
Read MoreHow are CPC sections designated and what do they represent?
CPC sections are the highest level of the classification hierarchy. According to MPEP 905.01: “Each section is designated by one of the capital letters A through H and has an associated section title. There are nine sections, eight of which correlate to the sections of the International Patent Classification (IPC). The ninth section is used…
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