[Purpose/significance] After the invention patent has been applied for and published, it has been in a pending legal status until the substantive examination decision is made. At this stage, the assessment of the prospects of patent grant is meaningful in theory and practice. [Method/process] Taking the 88304 invention patents applied by Chinese applicants in the field of biotechnology in the National Intellectual Property Office (CNIPA) from 1985 to 2014 as the study object, constructing indicators based on patent documents, the factors which impacted patent grant are studied through Logistic regression. This paper compared and analyzed the differences in the factors affecting the patent grant of different types of innovation entities through group regression and comparison of coefficients. [Result/conclusion] Logistic regression results show that the number of claims, the number of inventors, whether the applications are disclosed in advance, the number of words in the first claim, and the number of patent document pages are all positively related to the probability of patent grant in the field of biotechnology. The patent grant rate of enterprises is lower than that of universities and scientific research institutions, but higher than that of individual patents. The results of group regression coefficient difference test show that the influence of variables on patent grant is significantly different among different types of innovation entities. Therefore, in the analysis of patent grant in the field of biotechnology, it is necessary to classify and consider different innovation subject.
Feng Rentao
,
Yu Xiang
. A Study on Influencing Factors of Patent Grant in the Field of Biotechnology[J]. Library and Information Service, 2021
, 65(6)
: 102
-109
.
DOI: 10.13266/j.issn.0252-3116.2021.06.011
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