The Guide to the International Patent Classification (2025) is an updated publication by the World Intellectual Property Organization (WIPO), which aims to provide a clear and practical understanding of the use of the International Patent Classification system, otherwise known as IPC.
This guide explains how the IPC system operates, starting from the basics – such as its purpose in unifying the method of categorizing patents and facilitating the search for patent documents worldwide. Furthermore, it delves into the classification structure, presenting the sections, classes, and subclasses that make up the system.
A special section of the guide is dedicated to clarifying the rules and principles to be followed in order to classify an invention accurately – information that is valuable both for patent professionals and for inventors who seek to understand where their invention fits within this global system.
Additionally, the guide includes straightforward explanations of the symbols and signs used in the IPC, as well as practical advice on using WIPO’s online tools for searching and consulting existing classifications. It also addresses how to incorporate the latest updates into this system, helping readers to always stay informed about new changes.
This guide is useful for a wide range of readers – from patent law experts and professionals working in patent offices, to inventors and researchers who want to better understand the technological and legal landscape in which their work is developed.
