摘要
主要从中国专利的角度分析钨提取技术的研究现状。通过在中国专利文摘数据库中对钨提取领域进行检索，主要检索了2014年3月8日前公开的、向中国国家知识产权局申请的、分类号为C22B34/36（钨的提取）的中国专利申请，简要分析了专利技术的申请类型、申请量年度发展趋势、申请人地区分布和主要专利申请人，并重点介绍了2010-2013年间申请且已获得授权的专利技术，以期对从事钨提取及其相关领域的企业、科研单位和个人提供参考。
The research status of tungsten extraction technique is analyzed from the perspective of Chinese patents. The patents published before 2014/03/08 with IPC C22B34/36 in CNABS are searched and studied to analyze the application type, development trend of annual application, regional distribution of applicants and main patent applicants. The patents applied and patented between the year of 2010 and 2013 are intro-duced to provide reference to the related enterprises and researchers.
出处
《有色金属科学与工程》
CAS
2014年第3期65-69,共5页
Nonferrous Metals Science and Engineering
