摘要
本文以国内外专利申请数据库中与底部设有扩大头或扩大部分的桩相关的专利文献为基础,对扩底桩领域的专利申请状况进行统计分析,重点研究了该领域的重要申请人分布及其代表性专利,总结了扩底桩的技术发展路线。
Based on the patent documents related to the underreamed pile in the database at home and abroad, this paper analyzes the status of patent applications in the field of the underreamed pile and focuses on the distribution of important applicants in the field and their representative patents,and summarizes the technical development route of the underreamed pile.
作者
范丽超
高杰
李悦
徐天杰
张瑾
谢芳
Fan Lichao;Gao Jie;Li Yue;Xu Tianjie;Zhang Jin;Xie Fang(Patent Examination Cooperation Henan Center of The Patent Office, SIPO , Zhengzhou Henan 450002)
出处
《河南科技》
2016年第12期58-60,共3页
Henan Science and Technology
关键词
扩底桩
专利
underreamed pile
patent
