METHOD ON PATENT INFORMATION PROVIDING ACCORDING TO USER CLASSIFICATION

A method for offering patent information by classification system is provided to supply a directory having a multi-stage hierarchical structure corresponding to a user generation classification system, and to generate a modified query formula by using query formula information, so as to provide patent information by the modified query formula. A patent information system(100) is connected to a user computer(200) through a wire/wireless network(400). The patent information system comprises as follows. A source patent document processing module(180) obtains patent document data to perform a preset processing function, and generates patent document data matched with a type processable in the patent information system. A patent information DB generation module(190) generates a patent information DB(110) based on the patent document data generated by the source patent document processing module.