Requirements of pharmacy patent database are analyzed and discussed, and an outline design in data flow is presented.
对药物专利数据库进行了需求分析和讨论，提出了基于数据流图的概要设计。
The methods for USPTO patent database searching were introduced by examples, so as to be used to search patents in United States.
通过对美国专利商标局（USPTO）专利数据库检索过程的实例说明，介绍该专利网络检索方法，供用户在检索美国专利文献时参考与使用。
The information of invalid drug patent can be sought through patent database in the patent organization of nation or region respectively; also, it can be tracked in terms of online patent gazette.
药品失效专利信息检索可以通过各个国家地区的专利数据库实施，同时也可以通过各个国家地区的专利公报电子版进行跟踪获取。
The information of invalid drug patent can be sought through patent database in the patent organization of nation or region respectively; also, it can be tracked in terms of online patent gazette.
药品失效专利信息检索可以通过各个国家地区的专利数据库实施，同时也可以通过各个国家地区的专利公报电子版进行跟踪获取。
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