Abstract: Provided are a method and system capable of reducing unnecessary developing and operating costs by implementing data exchange or screen association in different intellectual property information systems having different server from each other. The method associates at least first and second different intellectual property related systems operated by different servers from each other. The method includes the steps of: providing, by the first intellectual property information system, identification of requested information to the second intellectual property information system; and providing, by the second intellectual property information system, a link to information corresponding to the identification, or opening a page corresponding to the identification.