汽车发动机产业技术专利信息分析

Analysis of Patent Information for Automotive Engine Industry Technology

针对汽车发动机产业技术专利信息的发展,本文对汽车发动机产业技术领域的国内外专利进行检索和分析。借助incoPat专利数据库检索和专利导航,比较分析方法,对汽车发动机产业技术专利申请的总体趋势、技术构成、技术专利活跃度和主要申请人进行分析。采用图表展示分析对象在各技术分支方向的专利数量分布情况,了解分析对象所覆盖的技术类别以及各分支技术的创新热度。分析结果表明,汽车发动机产业技术国内外专利申请总量为142511件,申请量总体发展趋势主要分成三个阶段,中国相关技术专利申请量的全球占比为31.81%,高于其它国家。高价值重点专利主要集中在美国、德国、法国、英国、日本、韩国等发达国家,且在全球范围内分布广泛,覆盖热点和重点技术分支。

In response to the development of patent information in automotive engine industry,this paper mainly conducted a comprehensive search and analysis of domestic and foreign patents in the field of automotive engine industry technology.By using incoPat patent database retrieval and patent navigation comparative analysis methods,this paper analyzed the overall development trend,technological composition,technological patent activity and main applicants of automotive engine industry technology patent applications.Meanwhile,a series of charts were used to display the number distribution of related patents in each technology branch direction,so as to understand technology categories covered by the analysis objects,and innovation enthusiasm of each branch technology.The analysis results show that the total number of domestic and international patent applications in automotive engine industry technology is 142511.The overall development trend of patent application volume is mainly divided into three stages.The China’s global proportion of related technology patent applications is 31.81%,surpassing that of other countries.However,the high-value key patents are mainly concentrated in the developed countries such as United States,Germany,France,United Kingdom,Japan and South Korea,and have a worldwide distribution,covering many hot spots and key technological branches.