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利用中国国家知识产权局专利检索系统和上海知识产权信息平台,收集、整理、分类了1985-2016年公开的稀土钢领域的中国专利。对专利申请趋势、专利区域分布状况、专利法律状态分布、专利申请人和发明人、专利技术领域等要素进行了分析。结果显示,稀土钢专利总体数量较少,但自2005年以后快速、持续增长;国内企业和机构占据了中国专利申请的绝大部分,国外机构申请量极少;无效专利比例较大,专利申请技术有待提高。建议加强稀土钢技术的研发力度,提高知识产权保护的专业化水平。
Using the Patent Search System of the State Intellectual Property Office and the Shanghai Intellectual Property Information Platform, the Chinese patents in the field of rare earth steel, which were disclosed from 1985 to 2016, were collected, sorted and classified. Analyzed the trend of patent application, the distribution of patent area, the distribution of legal status of patent, the applicant and inventor of patent, the field of patent technology and so on. The results show that the overall number of rare earth steel patents less, but since 2005 after the rapid and sustained growth; domestic enterprises and institutions accounted for the vast majority of Chinese patent applications, foreign organizations rarely apply; a large proportion of invalid patents, patent applications Technology needs to be improved. It is proposed to intensify the R & D of rare earth steel technology and improve the specialization of intellectual property protection.