PATENT EVALUATION AND DETERMINATION METHOD, PATENT EVALUATION AND DETERMINATION DEVICE, AND PATENT EVALUATION AND DETERMINATION PROGRAM

摘要

A patent evaluation and determination method includes: an invention input step of receiving an input of an invention sentence relating to an invention; a keyword extraction step of performing a syntactic analysis on the input invention sentence in units of words, and then extracting any search keyword in the invention sentence; a patent sentence group extraction step of extracting a patent sentence group in which the search keyword is contained from a database using the extracted search keyword; and a determination step of comparing the invention sentence and a sentence included in the patent sentence group and determining the patentability of the invention sentence on the basis of a result obtained by multiplying a reciprocal number of an edit distance of the sentence included in the patent sentence group by a length index of the invention sentence and a content rate of the search keyword.