专利文献是首选的竞争情报源。因为我国专利法规定专利的类型有发明专利、实用新型、外观设计专利。而前两种是主要专利 ,其授予条件是必须具备新颖性、创造性、实用性。新颖性是指未在国内公开使用、展示过和未在国际国内的公开出版物上发表过。所以专利文献比一般公开的文献? Patent literature is the preferred source of competitive intelligence. Because China's patent law provides for the type of patent invention patents, utility models, design patents. The first two are the main patents, the conditions must be granted with the novelty, creativity, practicality. Novelty means that it has not been published in the domestic public use, display and not published in international and domestic publications. So the patent literature than the general public literature?