Issues in measuring the degree of technological specialisation with patent data

This study investigated the effect of patent value on the renewal (survival) of patents. The private value of patents can be one of the main pillars sustaining a firm’s value, and the estimation of the value may contribute to the strategic management of firms. The current study aimed to confirm the recent research findings with survival analysis, focusing on the more homogeneous patent data samples. In this study, a dataset is constructed from a cohort of 6646 patents from the 1996 and 1997 application years, using patent data from the European Patent Office (EPO). We found that the family size and non-patent backward citations exhibited profound impacts on patent survival. This result is in line with numerous studies, indicating the positive impact of science linkages in the biotechnology and pharmaceutical fields. It was also found that the effect of the ex-post indicator is not as strong as the ex-ante indicators, like traditional family size and backward citations. In short, the family size matters most for the survival of patents, according to the current research.

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Tracking innovation diffusion: AI analysis of large-scale patent data towards an agenda for further research

Technological Forecasting and Social Change ◽

10.1016/j.techfore.2020.120524 ◽

2021 ◽

Vol 165 ◽

pp. 120524

Author(s):

Ashkan Fredström ◽

Joakim Wincent ◽

David Sjödin ◽

Pejvak Oghazi ◽

Vinit Parida

Keyword(s):

Innovation Diffusion ◽

Large Scale ◽

Patent Data

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Patent Analysis on the Development of the Shale Petroleum Industry Based on a Network of Technological Indices

Energies ◽

10.3390/en13246746 ◽

2020 ◽

Vol 13 (24) ◽

pp. 6746

Author(s):

Jong-Hyun Kim ◽

Yong-Gil Lee

Keyword(s):

Petroleum Industry ◽

Development Pattern ◽

Directional Drilling ◽

Patent Data ◽

Smart System ◽

Smart Systems ◽

Complex Development ◽

Technological Developments ◽

Technological Indices ◽

Degree Of Convergence

This study investigated the technological developments in the shale petroleum industry by analyzing patent data using a network of technological indices. The technological developments were promoted by the beginning of the shale industry, and after the first five years, it showed a more complex development pattern with the convergence of critical technologies. This paper described progress in the shale petroleum technologies as changes in relatedness networks of technological components. The relatedness represents degree of convergence between technological components, and betweenness centrality of network represents priority of technological components. In the results, the progress of the critical technologies such as directional drilling, increasing permeability, and smart systems, were actively carried out from 2012 to 2016. Especially, unconverged technology of increasing permeability and the converged technology of directional drilling and smart system has been intensively developed. Some technological components of the critical technologies are more significant in the form of converged technology.

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