In this paper, by using modern network technology and patent research and analysis software, the patent applications of blast furnace iron-making in Chinese steel industry are investigated and analyzed comprehensively, including the situation and trends of the Chinese blast furnace patent applications, and technology hot spots. The situation of foreign applications is also analyzed and compared with that of domestic applications. Several problems which should be attached importance to are proposed.
刘曼朗. 中国炼铁专利申请情况及分析[J]. 中国冶金, 2011, 21(9): 46-51.
LIU Man-lang. Analysis of Iron-Making Patent Applications in China. China Metallurgy, 2011, 21(9): 46-51.