The study of patent portfolio strategies of oil shale developers
International Journal of Innovation Science
ISSN: 1757-2223
Article publication date: 5 September 2016
Abstract
Purpose
The development of oil shale has become a popular technique in the energy industry in recent years. Although more research attention has been paid to this topic, there are scanty studies on patent portfolios. This study aims to explore this current mainstream technique and the patent portfolios of oil shale developers and investigates the major assignees at present to find the technical development trend of oil shale as a reference for government, policy makers, investors and industrial strategic development.
Design/methodology/approach
This study applies correspondence analysis and K-means clustering analysis on data mining and probes into the competitive techniques and strategic groups of the main enterprises in the oil shale industry. In addition, by approval dates, this study analyzes technical directions and the development trends of the current main oil shale enterprises.
Findings
The findings show differences in the enterprises regarding technical positions and patent portfolio strategies.
Originality/value
Differential positioning analysis suggests the relative technical advantages of the various enterprises and evaluates the competition among oil shale enterprises.
Keywords
Citation
Chang, S.-H. and Chang, H.-Y. (2016), "The study of patent portfolio strategies of oil shale developers", International Journal of Innovation Science, Vol. 8 No. 3, pp. 254-268. https://doi.org/10.1108/IJIS-06-2016-0009
Publisher
:Emerald Group Publishing Limited
Copyright © 2016, Emerald Group Publishing Limited