Nowadays, there are 50 million patent Literatures in the world, and the quantities is increasing by 1.5 million for one year. So it is a treasury full of value and chance. The tech infomation which patent Literatures reflect is very abundant, and we can forecast the situation about products and tech entering market, master the trend for tech developement, kown the tech general situation about competitors', make IPR strategy and self-determining IPR for enterprises, and enhance enterprises' creative capacity and market competing ability through the methods of research and analysis on ecnomic infomation, tech information, and legal information from patent literatures.
    Search by SIPO, the all datas are free. CNIPR and China Patent infnet provide more detailed searching and more kinds of services, and you can refer to the Coordination Section of ZZIPO (Zhuzhou Intellectual Property Office).