대기오염방지기술 특허출원의 공간적 분포 특성에 관한 연구

The patent applications of air pollution abatement technology are collected and their spatial distribution is analyzed. They are classified in view of 16 regional local governments and industry classification(NACE). Especially, industry classification is matched with International Patent Classification(IPC). We find that the patent applications of air pollution abatement technology is spatially concentrated in Seoul,Kyunggi and Incheon. And regions also show some heterogeneity in the pattern of patents by industry. This means that the effect of local environmental policy can be different depending on the type of industry. If an industry is related to the export-oriented finished good production such as auto, electronic components then the patent activity is concentrated on city with research and education facilities. If an industry is domestic oriented raw material and equipment producers such as non-purposed machinery or basic chemical, the patent activity are equally spread over whole nation. When we analyze the patent applicants with Moran I's statistics by region and the type of applicants, someweak geographical patterns can be observed.