International patent analysis of water source heat pump based on orbit database

International Conference on Energy Engineering and Environmental Protection 2017

能源学;生态环境科学

Li, Na^1

Institute of Scientific and Technical Information of Qingdao, China^1

关键词: International patents;    Japan and China;    Objective analysis;    On orbit;    Patent analysis;    Patent applications;    Rapid growth;    Water source heat pump;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/121/5/052098/pdf
DOI  :  10.1088/1755-1315/121/5/052098

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Using orbit database, this paper analysed the international patents of water source heat pump (WSHP) industry with patent analysis methods such as analysis of publication tendency, geographical distribution, technology leaders and top assignees. It is found that the beginning of the 21st century is a period of rapid growth of the patent application of WSHP. Germany and the United States had done researches and development of WSHP in an early time, but now Japan and China have become important countries of patent applications. China has been developing faster and faster in recent years, but the patents are concentrated in universities and urgent to be transferred. Through an objective analysis, this paper aims to provide appropriate decision references for the development of domestic WSHP industry.