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Analysis of Patent Legal Status Information Portfolio
Received date: 2012-09-29
Revised date: 2012-11-28
Online published: 2013-01-20
By complementing the patent application information analysis, patent legal status information analysis deeply reflects the technology gap, research and development(R&D) strength and patent quality. Based on three indexes of patent licensing rate, authorized patent efficient and effective patent holding time, this paper establishes a portfolio analysis model of patent legal status information from three perspectives of technology, source countries/regions and assignees, which reveals the relative competitive situation hidden by the number of patents. Furthermore, an empirical analysis with this model is presented on the technology of Lithium ion battery.
Wang Xuezhao , Zhao Yajuan , Zhang Jing . Analysis of Patent Legal Status Information Portfolio[J]. Library and Information Service, 2013 , 57(02) : 81 -84,135 . DOI: 10.7536/j.issn.0252-3116.2013.02.016
[1] van der J D. Statistics of European patents on legal status and granting data[J]. World Patent Information, 1988, 10(4): 243-249.
[2] 郭颖,朱东华,苏源. 纳米技术专利的法律状态信息分析[J]. 科学学研究,2009,27(3):368-373.
[3] 赖院根,朱东华,刘玉琴. 专利法律状态信息分析的理论研究及其实证[J]. 情报杂志,2007(8):56-59.
[4] 李春燕,石荣. 专利质量指标评价探索[J]. 现代情报,2008(2):146-149.
[5] 李青海,刘洋,吴泗宗,等. 专利价值评价指标概述及层次分析[J]. 科学学研究, 2007,25(2):281-286.
[6] Schankerman M, Pakes A. Estimates of the value of patent rights in European countries during the post -1950 period[J]. Economic Journal, 1986,96(384):1052-1076.
[7] 黄学杰,李泓,王庆,等. 纳米储锂材料和锂离子电池[J]. 物理,2002(7):444-449.
[8] 辛森,郭玉国,万立骏. 高能量密度锂二次电池电极材料研究进展[J]. 中国科学:化学,2011,41(8):1229-1239.
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