CPC分类体系在合金领域专利检索中的研究  

A Research of CPC Classification System in the Patent Retrieval of Alloy Field

作　　者：张晓冬[1] 王涛[1] 张华山[1] 

机构地区：[1]国家知识产权局专利审查协作北京中心材料工程发明审查部,北京100190

出　　处：《吉林工程技术师范学院学报》2014年第8期73-75,86,共4页Journal of Jilin Engineering Normal University

摘　　要：文章介绍了CPC体系的分类特点及获取方式;对比分析了CPC和IPC在合金领域组分/含量范围的标引特点,结合实际案例着重研究了CPC在合金领域的细分结构和检索应用。检索实践证明CPC能够有效实现扩展式检索、排除式检索和联合检索,弥补了IPC在合金领域中的检索不足,大大提高了检索效率。This paper introduces the characteristics of CPC system for classification and its access ways ; makes a comparative analysis toward the indexing features of CPC and IPC＇ s component/content range in the alloy field, manly studies the subdivision structure and retrieval application of CPC in the field of alloy combining with the actual cases. Retrieval practice proves that CPC can effectively achieve the extended retrieval, exclusion retrieval and joint retrieval, make up for the retrieval deficiency of IPC in the alloy field, and greatly improve the efficiency of retrieval.

关 键 词：CPC 合金 检索 细分 

分 类 号：TQ171.68[化学工程—玻璃工业]