Estimates of the Value of Patent Rights in European Countries During Thepost-1950 Period
Estimates of the Value of Patent Rights in European Countries During Thepost-1950 Period
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DOI：
10.3386/w1650
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发表时间：
1985-06
期刊：
影响因子：
--
通讯作者：
Mark A. Schankerman;A. Pakes
中科院分区：
文献类型：
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作者：
Mark A. Schankerman;A. Pakes
本文考察了1950年以后英国、法国和德国专利权价值的分布情况。这些价值是从专利权人支付专利更新费的行为中推断出来的。一个简单的经济模型的更新决定相结合的数据，在不同的年龄和更新费用表更新的专利的比例，以产生估计的分布（和总）在这些国家的专利权的价值。此外，数据表明价值分布发生了变化，我们在此期间跟踪这些变化。特别值得关注的实证结果是：专利权的总价值及其变化与专利数量变化之间的关系、专利价值分布的倾斜、专利收益的过时率。
This paper examines the distribution of the values of patent rights in the United Kingdom, France, and Germany during the post-1950 period. These values are inferred from the behavior of patentees with respect to payment of renewal fees on their patents. A simple economic model of renewal decisions is combined with data on the proportion of patents renewed at alternative ages and the renewal fee schedules to produce estimates of the distribution (and the total) value of patent rights in these countries. Moreover, the data indicate that there have been changes in the value distribution, and we follow these changes over the period. The empirical results of particular interest concern: the total value of patent rights and the relationship between changes in it and changes in the quantity of patents, the skew in the distribution of patent values, and the rate of obsolescence on the returns to patents.