To provide a system and a method for selling and buying intellectual property right for automatically setting the selling/buying price of intellectual property rights (especially patent rights and utility model rights) according to the right contents and variation in right value.
A server 22 at a Web site opens the contents of object right to be sold and its sale price (selling price) to the public on the Internet 10 and receives bids. It is checked whether the specified variation factors of the right to be sold change in every specified period and when it is confirmed that the contents of the right include a variation factor, a varied sale price is calculated from a price variation rate and the current sales price (selling price) by referring to a price variation rate database 25 in which the correlation between varying factors and the variation rates of prices is recorded and this varied sale price is opened to the public as a new sale price (selling price) on the Internet 10.
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KONDO YASUO
KODERA YASUO
TAZAWA TAKAO
