美国化学文摘(CA)现报道27国及2个国际组织的专利。同利用专利检索工具相比,从CA查找专利文献有以下优点:(1)不要求熟悉专利分类法;(2)不一定要知道发明的“人事项目”; (3)不一定要了解专利号;(4)可查到用自己能阅读的语文撰写的“冈族专利”说明书。本文简要介绍利用CA查找化学化工领域专利文献的方法。查现期CA中刊登的专利文献(文摘)有两种途径:(1)利用各期的关键词索引(Keyword Index)。凡 The American Chemical Abstracts Service (CA) now reports on the patents of 27 countries and 2 international organizations. Compared with the use of patent search tools, patent documents from the CA search has the following advantages: (1) does not require familiarity with the patent taxonomy; (2) does not necessarily know the invention of the “personnel project”; (3) does not necessarily know the patent number ; (4) can be found in the language you can read the “Gang patent” manual. This article briefly describes the use of CA to find chemical and chemical patent documents. There are two ways to check the patent documents (abstracts) published in the CA: (1) Use the Keyword Index of each period. Where