专利索引

CA专利索引的特点和作用

Characteristics and role of patent index in Chemical Abstracts

世界专利索引检索数据库

World Patent Index data base

本文基于Dialog联机检索，以德温特世界专利索引数据库和专利引文索引数据库为数据源，对质子交换膜（PEM）燃料电池行业进行了专利分析研究。

Based upon Dialog online search , we use Derwent World Patents Index ( DWPI ) and Derwent Patents Citation Index ( DPCI ) as data sources to analyze the patents in PEM fuel cell industry .

德温特公司世界专利索引体系的发展及其对我国索引编制工作的启示

Derwent ′ s WPI Retrieval System and Its Enlightenment to the Index Compiling Service in China

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；

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 .

发明人与专利人索引

Index of inventor and patentee

本文就高校学报和专利公报与专利索引的分类进行讨论。

This paper discusses the classification of the university journal , patent bulletin and patent index .

而专利公报与专利索引宜入技术领域或干脆不分类。

It is the best to classify the patent document into the technology field . That the patent document is not classified is practicable .

本文基于Lucene开发了专利全文检索系统，采用倒排索引结构对专利全文进行索引，加快了检索速度。

Full-text patent search engine was developed based on Lucene . Patent full texts were indexed by inverted index structure to speed up the retrieval time .

为提高防伪专利搜索速度，论文研究了全文检索工具Lucene，对Lucene的总体架构进行了分析，使用该技术对防伪专利进行索引和检索，提高了专利检索性能。

To improve anti-fake patents search speed , the thesis studied the full-text search tool Lucene , the overall architecture of Lucene are analyzed . Lucene was used on indexing and retrieval of anti-fake patents to improve the performance of patents searches .