What is the patent classification number? What are the patent classification numbers?

What is the patent classification number? What are the patent classification numbers? According to the Strasbourg Agreement on International Patent Classification signed by 197 1, the international patent classification table (IPC classification) is the only international patent document classification and retrieval tool, which is necessary for all countries in the world. In the past 30 years, IPC has made indelible contributions to the organization, management and retrieval of massive patent documents. What is the patent classification number? What are the patent classification numbers? The eighth edition of IPC has about 20,000 articles, including departments, major categories, minor categories, major groups and a few groups in some technical fields. There are about 70,000 articles in the advanced version of the eighth edition of IPC, including the basic edition and the items further subdivided in the basic edition. Advanced version is used by industrial property offices and large industrial property offices with the lowest amount of PCT documents to classify a large number of patent documents. IPC classification is divided into eight parts, namely: a; ; The needs of human life (agriculture, light industry and medicine); b； ; Operation and transportation; c； ; Chemistry, metallurgy; d； ; Textile and paper making; e； ; Fixed buildings; f； ; Mechanical engineering, lighting, heating, weapons, blasting; g； ; Physics; h； ; Electricity. Each classification number includes department, category, category, group and group. Take the classification number B65C25/02 as an example. b； ; Ministries and commissions; B65； Main categories; B65C； Small class; b65c 25/00； ; Large groups; b65c 25/02； ; There are many methods for searching group patents: International Patent Classification (IPC), European Patent Classification Number (ECLA), American Patent Classification Number (CCL), Japanese Patent Classification (FI/F-$ TERM), Joint Patent Classification (CPC) and so on. It is more common that IPC is on the website of the European Patent Office. You can use IPC or ECLA (the classification style is similar to IPC, but the classification is finer and more convenient). What is the patent classification number? What are the patent classification numbers? Bian Xiao answered this question here. If you have more questions about patents, you can continue to pay attention to Bajie Intellectual Property or contact us by phone.