专利法律状态信息分析可以弥补专利申请信息分析的不足,对技术差距、研发实力和专利质量等多方面都能进行深入的揭示。基于专利授权率、授权专利有效率和有效专利维持时间三个指标构建技术、技术来源国或地区、申请人三个维度的专利法律状态信息组合分析模型,揭示专利数量无法展现的相对竞争态势,并以锂离子电池领域进行实证研究。 Patent legal status information analysis can make up for the lack of information analysis of patent applications, and can reveal the technical differences, research and development strength and patent quality in many aspects. Based on the combination of patent legal status information in the three dimensions of patent authorization rate, authorized patent efficiency and effective patent maintenance time, the patent law state information in three dimensions of technology origin countries or regions and applicants, the relative competition situation can not be revealed, And lithium-ion batteries in the field of empirical research.