A METHOD OF CALCULATING A REMAINING CITED-PATENT LIFE TIME, AN APPARATUS FOR CALCULATING A REMAINING CITED-PATENT LIFE TIME, AND STORAGE MEDIUM FOR STORING A PROGRAM CALCULATING A REMAINING CITED-PATENT LIFE TIME

摘要

The present invention relates to a method and an apparatus for calculating a remaining cited-patent life time, and a storage medium for storing a program calculating the cited-patent life time. Provided in an embodiment of the present invention is a method for calculating a remaining cited patent life time including the steps of: calculating the number of cited times of patents included in a first technology group cited according to the number of lapse years of the patents from information on the patents of the first technology group; calculating a survival probability by the number of lapse years of the patents using the calculated number of cited times of the patents included in the first technology group; calculating an average cited patent life time including obsolescence periods of the patents included in the first technology group using the calculated survival probability by the number of lapse years; and calculating a value obtained by subtracting the number of lapse years of a first patent among the patents included in the first technology group from the calculated average cited patent life time as a remaining expectation life time of the first patent. [Reference numerals] (S110) Calculate the number of cited times of patents included in a first technology group according to the number of lapse years of the patents from information on the patents of the first technology group; (S120) Calculate a survival probability by the number of lapse years of the patents included in the first technology group using the calculated number of cited times of the patents; (S130) Calculate an average cited patent life time including obsolescence periods of the patents included in the first technology group using the calculated survival probability by the number of lapse years; (S140) Calculate a value obtained by subtracting the number of lapse years of a first patent among the patents included in the first technology group from the calculated average cited patent life time as a remaining expectation life time of the first patent