摘要
对楼道电梯的相关专利申请情况进行了研究,分析了楼道电梯领域的全球和中国申请趋势、专利申请地域分布,以及重要分支的技术演进路线,大致梳理了其发展方向。
The related patent applications of stairlift were studied.The trend of patent applications,the ar.ea of patent applications and the development of technical branches in stairlift field was analyzed.The develop.ment direction of stairlift was sorted out.
作者
李梅
罗珊
LI Mei;LUO Shan(Patent Examination Cooperation Sichuan Center of the Patent Office,CNIPA,Sichuan Chengdu 610213)
出处
《河南科技》
2019年第18期59-61,共3页
Henan Science and Technology
关键词
楼道电梯
专利
技术分支
stairlift
patent
technical branches
