[Purpose/Significance] This paper is to study the characteristics of patents as a basis for identifying high-quality patents that can still pass the examination under "invalidation procedure". [Method/Process] This paper took all the invention patents that have gone through the invalidation procedure in China as research samples and carried out a statistical comparative study on winning patents and losing patents from the perspective of bibliometrics. The kolmogorov-Smirnov Z test and Mann-Whitney U test in the nonparametric test were used to analyze the differences of 6 bibliometric indexes of the sample patents. [Result/Conclusion] It is found that the number of inventors, the frequency of patent citing and the number of patent family members is significantly higher in the winning group than in the losing group. However, there is no difference between winning and losing patents in cited frequency, which is usually very important. Based on the team conflict theory, innovative destruction theory and the legal basis of patent system, the significant characteristics of the winning patents are discussed, and it is believed that the combination of the three characteristics can be a reference for the identification of high-quality patents.
Li Rui
,
Wang Shuangling
,
Kang Xinyu
. Analysis on the Characteristics of Victory Patents in Invalidation Procedure Under the Target of Higher Quality Patent Identification[J]. Library and Information Service, 2022
, 66(23)
: 72
-81
.
DOI: 10.13266/j.issn.0252-3116.2022.23.008
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