특허의 경과기간과 활용 가능성에 대한 실증분석과 시사점

Based on the assumption of high correlation between the time elapsed from the registration (or application) of patent and the vale of patent, this study conducts quantitative and qualitative analyses to examine when the patent management or exploitation strategies should be changed. The main results are as follows. First, the 90% of the licensed patents generated from public R&D programs were transferred to private firms within 1.61 years and the 90% of the licensed patents generated from private R&D programs within 5.11 years. It indicates that the transfer possibility of patent after 5 years from registration becomes remarkably low. Second, the 66.7% of enterprises and the 60.3% of universities and public research institutes perceive that patents rapidly depreciate after 5 years from registration. The results of this paper imply that the public policy and management strategy for promoting patent license and utilization should be changed at certain points. Furthermore, the standardization of the criteria for detecting sleeping patent based on the time passed from patent registration would mitigate the negative effect caused by discrepancy in the criteria of sleeping patent, and also increase the effectiveness of public policy for promoting patent license and utilization.