摘要
详细分析德温特专利创新索引(DII)、欧洲专利系统(esp@cenet)、美国化学文摘(CA)3种检索工具对专利文献的报 道特征与检索功能;通过检索实例对3者应用于科技查新专利检索的优势与不足进行评析,并就具体应用方法提出相关建 议。
The characters and functions of Derwent Innovations Index (DII) ,esp@cenet and CA in patent information reporting are compared and analyzed. The advantages and deficiencies of the three databases in patent documents retrieval are illustrated respective-ly. And related suggestions about their application to sci - tech novelty search are put forward.
出处
《图书情报工作》
CSSCI
北大核心
2004年第7期82-85,共4页
Library and Information Service
