How is the International Patent Classification (IPC) structured?

The International Patent Classification (IPC) is structured hierarchically, consisting of the following levels: Sections: Designated by capital letters A through H, representing broad fields of technology. Classes: Each section is divided into classes, represented by a two-digit number following the section letter. Subclasses: Classes are further divided into subclasses, represented by a capital letter following…

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What is the CPC classification system and how is it structured?

The Cooperative Patent Classification (CPC) system is a hierarchical arrangement of subject matter used for organizing and classifying patent documents. According to MPEP 905.01, the CPC structure consists of: Sections: The highest level, designated by capital letters A through H and Y. Classes: Subdivisions of sections, identified by a section letter followed by a two-digit…

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