信息通信产业兼具技术密集和专利密集的特征，使得以专利布局为基础的专利诉讼及无效战略成为国内外企业在该领域竞争的主要方式。如何全面利用专利无效诉讼中的专利信息，挖掘我国ICT产业竞争的态势及策略，对于提升企业竞争决策的效率，具有实践意义。本文以我国ICT产业的发明专利无效数据为基础，运用社会网络分析方法构建专利无效关系网络，通过网络中心性因子分析和聚类分析将无效诉讼关联主体聚成四类，分析与比较各类主体的诉讼地位及特点，挖掘产业竞争的特点并进一步提出具有针对性的无效诉讼策略。发现我国ICT产业的竞争格局分化较为严重，表现出“偶然”及“离散”性特点。并针对每一种类型企业提出了竞争策略的构建意见。

ICT industry characteristic of high intensity of technology and patent is a strategic emerging industry to which has been paid great attention in China. Patent layout strategy, patent lawsuit and invalidation strategy are main ways by which companies participate in competitions. How to make full use of patent invalidation information and make a thorough analysis of competitive situation of ICT industry are of key significance to cooperation to improve their competitive strategy efficiency. Based on invention patent invalidation data for ICT industry in China, SNA (Social Network Analysis) method is used to build a patent invalidation relation network. This paper divides all enterprises into four types using social network centrality analysis. Analyzing and comparing their competition positions and characteristics, this paper raises several suggestions to the all types of enterprises. It is found that differentiation, contingency and discretization are typical feature of ICT patent invalidation network. Accordingly, for different enterprise, competitive strategies are analyzed.

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2017年贵州省科技计划项目“贵州省大数据产业关键技术演化路径及专利战略研究”（黔科合基础[2017]1709）；2017年重庆市教育委员会人文社会科学研究规划项目“基于诉讼特征的新能源汽车企业国际化专利风险预警研究”(17SKG140)；贵州省教育厅青年科技人才成长项目：基于物联网站-车协同的电动公交充换电站布局优化研究（黔教合KY字[2018]159）。