全球漏磁管道检测技术发明专利发展趋势

1. 北京电子科技职业学院汽车工程学院;2. 中国石油管道公司

管道;漏磁;检测;专利

Development trend of the invention patents related to magnetic flux leakage pipeline detection technology around the world
ZHU Qingsong1, HAO Ruican1, JIA Junliang1, LIU Ningyu2, JIN Yuxin2

1. School of Automotive Engineering, Beijing Polytechnic;2. PetroChina Pipeline Company

pipeline, magnetic flux leakage, detection, patents

备注

漏磁管道检测技术是一种应用较为广泛的无损检测技术。为了帮助中国企业了解更多的行业竞争态势,合理制定企业知识产权布局,对近年来漏磁检测技术相关专利信息进行了系统梳理。通过检索全球漏磁管道检测技术领域的专利信息,分析了漏磁管道检测技术在全球的专利布局情况和主要国家、主要申请人的专利布局策略。研究结果表明:近年来中国在漏磁管道检测技术方面的专利申请量和公开量增长迅猛,国外申请量保持平稳态势;国外主要申请人全部为企业,而中国主要申请人为高校、科研院所等,说明中国有大量研究成果尚停留在实验室阶段,有待实现产业应用。(图9,参[23]

Magnetic flux leakage pipeline detection technology is a kind of widely used nondestructive detection technology. To help Chinese enterprises to understand the situation of industry competition more and formulate the layout of intellectual property reasonably, it is particularly important to research the patent information related to magnetic flux leakage detection technology. In the paper, global patent information in the field of magnetic flux leakage pipeline detection technology was searched. The layout and distribution situations of the patents related to magnetic flux leakage pipeline detection technology around the world were analyzed. Patent layout strategies of major countries and main applicants were studied. It is shown that in recent years, the amount of patent applications and publicity in the field of magnetic flux leakage detection technology in China has increased rapidly while the application amount abroad remains relatively stable. The main applicants abroad are all enterprises, while the applicants in China are mainly universities, research institutes, etc. It is indicated that a lot of related research results in China are still in the stage of experimental study and waiting for industrial application. (9 Figures, 23 References)