Sorted patent searching method by IPC

Abstract

A patent searching method by IPC, the characteristics consist of the following steps: set up an IPC classification database, search the IPC class of the IPC classification database by key words; filtrate the correlative IPC class according to the searching result; search the correlative patent by the filtrated IPC class. It also includes the steps: set up the word-base of the approximate word and thesaurus, use the keyword to index the approximate word and thesaurus, then use the key word and its the approximate word and thesaurus to index the IPC class in the IPC classification database, amalgamate the index results.

Description

technical field [0001] The invention relates to a data retrieval method, in particular to a method for searching patents by using IPC classification. Background technique [0002] According to the "Strasbourg Agreement on the International Patent Classification" concluded in 1971 and entered into force in 1975, the International Patent Classification (IPC) was formulated. Used to search and query patent information in all technical fields. In order to meet the needs of technological development, IPC is basically revised every five years. Recently, WIPO released the latest version of the Eighth Edition of the International Patent Classification (IPC) in English and French on its website, which will come into force on January 1, 2006. The International Patent Classification, which has been revised many times, contains a huge amount of information. Taking the seventh edition as an example, there are about 69,000 groups. [0003] Due to the complexity of the patent classifica...

AI Technical Summary

Problems solved by technology

This search method usually cannot find other patent classification codes related to the found patent classification code, which will inevitably miss relevant patent documents