Research on the Trend of Landfill Ecological Restoration Technology Based on Patent Analysis

Ecological restoration, as one of the important technologies for landfill treatment, has attracted much attention from governments and the academy of science and technology. In this paper, the focus is the analysis of the trends of ecological restoration technology of landfill, we make a comparative analysis of domestic and foreign patents from the perspective of application trends, major technical fields, main patentees, competition and risks by comprehensively using the platforms and tools such as the Chinese Patent Database, Derwent World Patent Index Database, and the European Patent Office Patent Literature Database. Our work is of referential significance for the development of China in this field.