摘要:
To propose a patent value evaluating device capable of identifying the causal association with business activity. A patent power calculating device comprises a patent history data acquiring section, an item content extracting section for searching for a combination of names of standard items indicating legal procedures and extracting the item contents and their procedure dates according to the combination of standard item names searched for, a search result holding section for holding the extracted item contents and the procedure dates, a cost table holding section for holding a cost table where the combinations of item contents and prepared costs are associated with one another, an obsolescence function storage section for storing obsolescence functions used as measures of the obsolescences of the techniques in each technical field, a post-obsolescence cost calculating section for acquiring costs from the cost table and calculating the post-obsolescence cost on the calculation reference date by using the calculation reference date, the procedure date, the application date, and the obsolescence function, a totalizing section for totalizing the calculated post-obsolescence costs for the applications, and an output section for outputting the calculated total.