At last the main sorts of ways in Chinese patent retrieval have been illustrated.

最后总结了我国专利文献检索的主要方法与途径。

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This paper makes analysis on the main component factors and, based on this, selects rational models for forecasting patent developing trends.

对专利的主要构成因素进行了分析，在此基础上选择合理的专利发展趋势预测模型。

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This lesson chiefly describes the basic cases of patent application of fertilizer and the main problems existed in specifications and claims in current application documents.

这一讲着重介绍我国肥料专利申请的基本情况，以及在现有申请文件中，说明书与权利要求书中存在的主要缺陷。

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Many analysts already expect that generics could enter the market shortly after Claritin's main patent expires at the end of the year.

FORBES: Magazine Article

Such lawsuits are strengthened if the brand-name drug company files a new patent covering, say, the colour of the pill bottle just before the main patent is about to expire.

ECONOMIST: Prescription drugs

In 2000 Bristol-Myers won a four-month extension for its BuSpar anxiety drug by obtaining--only hours before the main patent was to expire--a new patent on how the drug is metabolized.

FORBES: Hard to Swallow