[关键词]
[摘要]
以江苏大学与三家企业为研究对象，综合运用描述性统计方法和回归分析方法，选取发明人个数、IPC分类号个数、权利要求数、同族专利数量、引证文献数量、被引文献数量、审查时间等专利指标，多角度量化研究专利维持时间。研究结果表明，校企发明专利维持时间的影响因素存在较大差异，各个因素对发明专利维持时间的影响程度在不同主体之间也呈现出较大差异性。
[Key word]
[Abstract]
Taking Jiangsu University and three enterprises as the objects of study, the descriptive statistics method and the regression analysis method are used to select the number of inventors, patents, the same patent family, cited documents, review time and other patent targets, serving for research on patent maintenance time from different perspectives. The results show that there are significant differences in the factors which influence the maintenance time of invention patents between universities and enterprises, and the influence degree of various factors on the maintenance time of invention patents also reveals great diversities among different subjects.
[中图分类号]
[基金项目]
基金项目：国家知识产权局软科学研究项目“战略性新兴产业专利联盟的构建及运作模式研究——以江苏省为例”（SS12-A-08）；镇江市软科学研究项目“镇江市电动汽车用锂电池技术专利预警研究”（YJ201303）；大学生创新创业训练计划项目“江苏大学主导下农机装备协同创新专利联盟运行模式研究”（201610299044Z）
