Classification principles and methods of ipc numbers

Ipc = International Patent Classification International patent classification includes the following categories: A- Necessary for human life B- Homework; Transportation c- chemistry; Metallurgical d- textile; Papermaking e- fixed building f- mechanical engineering; Lighting; Heating; Weapons; What is the function and value of the international ipc classification number of blasting G- physics H- electricity? International Patent Classification (IPC) is an international tool for managing and utilizing patent documents.

The functions of international patent classification are:

(1) makes the patent documents of all countries obtain a unified classification tool, which is convenient for the classified management, use and retrieval of patent documents; (2) It can be used for various searches, such as patent literature search, to determine the novelty and creativity of patent applications (including evaluating the advanced nature and practical value of technology);

(3) Using IPC classification table to arrange patent documents, so that users can easily obtain technical and legal information from them; (4) As the basis for selectively reporting patent information to all users;

(5) as a basis for investigating the existing technical level in a certain technical field;

(6) As the basis of patent statistics, we can evaluate the technological development in various technical fields.