中国金刚石钻头技术专利现状分析

Analysis on the Current Situation of Chinese Diamond Bit Technology Patents

通过采集、整理1985～2013年中国金刚石钻头技术专利文献，对申请人类型分布、维持年限、技术领域、法律状态进行了分析，并与全国的专利水平进行了比较。中国金刚石钻头技术专利申请近几年大幅增长，国内申请人在专利数量上占绝对优势，地质（矿山）、石油天然气、建筑业是其主要的应用领域，申请人的技术能力比较平均，没有形成垄断的技术包围圈，但专利类型分布不均衡，专利的维持年限和寿命比较低。提出了一些发展金刚石钻头技术的专利战略。

Diamond bit technology patent documents in China from 1985 to 2013 are collected and sorted.The applicant type distribution, patent maintenance period, the technology field and the patent legal status are analyzed and compared with the overall patent level in China.The results show that the applications of diamond bit technology patent have been greatly increased in China in recent years, domestic applicants have the absolute superiority in the patent number, the main application fields are geology （ mining） , petroleum＆amp;natural gas and the construction industry.It is balanced for the appli-cant＇s technical capacity and there is no monopoly technology encirclement, but the patent type distribution is uneven with short maintenance period and service life.Some patent strategies of diamond bit technology are discussed.