外国优先权对专利维持时间影响实证研究——基于美国、德国、日本、韩国和中国授权专利数据的比较

Abstract

[目的/意义]国外优先权及其数量是专利在国外进行布局以及专利价值的重要标志,研究其对专利维持时间的影响对提高创新主体的专利运用能力具有重要意义。[过程/方法]从有无外国优先权和外国优先权数量两个视角分析美国、德国、日本、韩国和中国授权且于2014年法定保护时间届满专利的维持时间进行实证分析。[结果/结论]美国、德国和中国授权的有外国优先权专利的维持时间长于无外国优先权专利的维持时间,日本和韩国授权的无外国优先权专利的维持时间长于有外国优先权专利的维持时间;外国优先权数量与专利维持时间相关性系数较低。

[ Purpose/Significance] Foreign priority and the number of foreign priority are important indicators for the patent layout abroad and the patent value. Studying the impact of them on the patent maintenance time is critical to improving the patentability of innovation subjects. [ Method/Process]From the two perspectives of whether there is a foreign priority and the number of foreign priority, the main-tenance time of patents granted by the U. S., German, Japan, Korea and China with the legal protection time expired in 2014 are analyzed empirically. [ Result^Conclusion] The study indicates that the maintenance time of patents with foreign priority granted by the U. S., Ger-man and China is longer than those without i t, while it＇s totally opposite for patents with foreign priority that are granted by Japan and South Korea; the correlation coefficient between the number of foreign priority and the maintenance time of patent is low.