科研管理

科研管理 ›› 2018, Vol. 39 ›› Issue (5): 156-164.

• 论文 • 上一篇    

基于有效专利的专利丛林测度及演进分析

张米尔，李海鹏，国伟   

  1. 大连理工大学  管理与经济学部，辽宁  大连116023
  • 出版日期:2018-05-20 发布日期:2018-05-21
  • 通讯作者: 张米尔
  • 基金资助:

    国家自然科学基金资助项目：穿越专利丛林的技术研发与专利策略研究（71572024），2016.1-2019.12；国家社会科学基金重点项目：促进中国创新发展的制度研究（15AZD069），2016.1-2017.12。

Measurement and evolution analysis of patent thickets based on valid patents

Zhang Mier, Li Haipeng, Guo Wei   

  1. Faculty of Management and Economics, Dalian University of Technology, Dalian 116023, Liaoning, China
  • Online:2018-05-20 Published:2018-05-21

摘要： 在专利数量快速增长的背景下，由大量专利形成的专利群成为专利领域的新现象，由于类似生长茂盛的灌木丛，被形象地称为专利丛林。面对海量的专利数据，如何测度专利丛林和分析演进过程是亟待研究的问题。通过分析专利丛林的生成机制，基于有效专利构建专利丛林的测度指标，采用层次聚类分析方法，定量划分专利丛林的演进阶段。运用以上构建的分析方法，选择喷墨打印技术为研究样本，基于长周期的时间序列数据，对专利丛林进行分析测度并揭示其演进过程。

关键词: 专利丛林, 有效专利, 演进分析, 层次聚类分析

Abstract: With the rapid increase of patents, patent clusters formed by a large number of patents are becoming a new phenomenon in the patent field. Patent clusters are also referred to as patent thickets, because they are similar to lush thickets. It has become an urgent task to measure patent thickets and analyze the evolution from the massive data. The generation mechanism of patent thickets has been analyzed in this paper. The measurement index of the patent thicket is developed based on valid patents. The hierarchical cluster analysis is employed to classify the evolution periods of patent thickets. Taking inkjet printing technology as the research sample, the methods are employed to measure the patent thickets and analyze the evolution with the data of long-term time series.

Key words: patent thicket, valid patent, evolution analysis, hierarchical cluster analysis