中文摘要：

技术专利正从保护手段演变为竞争工具，导致外围专利的涌现和专利泡沫的泛起，给专利管理和科技评价带来新的困扰。面对海量的专利数据，如何有效测度外围专利是亟待研究的问题；通过分析外围专利的生成机制和基础数据，基于典型专利族的差异，研究提出定量测度外围专利的方法，构建外围专利测度指数；在此基础上，以苹果公司为研究样本，对外围专利进行定量测度和分析。

英文摘要：

Patents are gradually evolving from protective methods into competitive tools, which results in the springing up of sur- rounding patents and forming of patent bubbles. Surrounding patents have made much trouble to patent management and its scien- tific evaluation. It has become an urgent task to construct effective measurement method and to screen out surrounding patents from the massive data. The generation mechanism and basic data of surrounding patents have been analyzed. The measurement method is proposed and an index of surrounding patents is developed based on the differences of typical patent families. Taking Apple Inc. as the research sample, the method has been used to measure and analyze surrounding patents.