摘要
通过对CNKI数据库检索,从专利时序分布、研究热点与演化趋势等方面分析落叶收集装置研发现状与发展趋势。结果表明,国内关于落叶收集装置的文献数量总体呈指数型增长,专利类型以实用新型最多,外观设计最少;研究热点以固定连接、收集箱出现频率较高。申请专利涉及主要主题前10位占全部专利的22.35%,次要主题前10位占全部专利的44.69%。研究学科中建筑科学与工程最多,占全部授权专利的64.82%。专利前10名的省(市)申请授权的专利共450件,占全国总数的71.32%,这些省(市)既是我国绿地面积大省(市),也是我国经济大省(市),对原创性专利研发比较重视,科技投入较多,专利申报数量也相对较多。
To understand the patent technology development of leaf collection devices in China,the current situation and development trend of leaf collection devices are analyzed by searching and analyzing the CNKI database in terms of patent chronological distribution,research hotspots,and evolutionary trends.The results show that the overall number of domestic literature on defoliation collection has increased exponentially.The type of patent is the most with utility models and the least with designs.Research hotspots fixed connections,collection boxes appear more frequently.The top 10 patent applications involving major themes accounted for 22.35%of all patents,and the top 10 minor themes accounted for 44.69%.The research discipline with the most building science and engineering accounted for 64.82%of all granted patents.The top 10 provinces and cities in terms of patents applied for authorization of a total of 450 patents,accounting for 71.32%of the country.These provinces and cities are both large provinces and cities with large green areas and large economies in Chin,which attach more importance to original research and development,invest more in science and technology,and file relatively more patents.
作者
温谨瑜
张彭岗
温学飞
Wen Jinyu;Zhang Penggang;Wen Xuefei(School of Energy and Power Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013;Institute of Forestry and Grassland Ecology,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002)
出处
《宁夏农林科技》
2023年第2期52-55,共4页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
宁夏自然基金项目“柠条林土壤酶化学计量特征与土壤植物碳氮磷元素的相应关系研究”(2022A1265)
江苏大学生创新训练计划项目(2022)。
关键词
文献计量
落叶收集装置
专利
Bibliometrics
Defoliation collection
Patent
