Citations, family size, opposition and the value of patent rights
Citations, family size, opposition and the value of patent rights
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DOI：
10.1016/s0048-7333(02)00124-5
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发表时间：
2003-09-01
期刊：
影响因子：
7.2
通讯作者：
Vopel, K
中科院分区：
文献类型：
--
作者：
Harhoff, D;Scherer, FM;Vopel, K
我们结合联合收割机的专利权价值的估计，从专利持有人的调查与一组指标变量，以模拟专利的价值。我们的研究结果表明，专利文献的引用次数以及专利的引用次数与其价值呈正相关。非专利文献的参考文献提供了有关制药和化学专利价值的信息，但在其他技术领域则不然。在异议和撤销程序中得到支持的专利和代表大型国际专利家族的专利特别有价值。(C)2002 Elsevier Science B.V.保留所有权利。
We combine estimates of the value of patent rights from a survey of patent-holders with a set of indicator variables in order to model the value of patents. Our results suggest that the number of references to the patent literature as well as the citations a patent receives are positively related to its value. References to the non-patent literature are informative about the value of pharmaceutical and chemical patents, but not in other technical fields. Patents which are upheld in opposition and annulment procedures and patents representing large international patent families are particularly valuable. (C) 2002 Elsevier Science B.V. All rights reserved.