Constructing an Enhanced Patent Citation Network by Adding Unused Relevant Patents
| Autor: | Hui-Chen Hsieh, 謝惠媜 |
|---|---|
| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 The patent citation analyses rely on the citations between patents, including quality of patents, knowledge flow and spillover, technology development and industrial trend. The inventors record relevant information as prior art but not all the relevant prior studies would be cited as references. Some highly relevant patents may be unused for the citation time lag (CTL). This paper used the bibliographical coupling (BC) and Pareto principle to identify the unused relevant patents (URP). Some of the missing citation links can then be made up by adding the URP and an enhanced patent citation network (EPCN) can be constructed by taking the URP into account. The patent citation network (PCN) and EPCN were discussed at patent and assignee level in this paper. The differences between the two networks were studied through the Freeman vertex betweenness centrality and the Johnson’s hierarchical clustering. The light emitting diode (LED) illuminating technology was chosen for case study in this paper in order to demonstrate the feasibility of the research methodology. As shown in this work, the relationship between patents can be enhanced by adding the URP. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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