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With the intensification of globalization, more and more foreign pharmaceutical companies their eyes on China, the most populous country, which bears the market potential is amazing. Therefore, many large international pharmaceutical companies such as Pfizer, Roche, and all the R \u0026 D focus to the Chinese market, patent applications in China in recent years has increased every year, which has been more than a patent declaration in the legal sense, but also implies patent strategic thinking as to guide the direction of enterprise development, therefore, research patent strategy implemented by foreign pharmaceutical enterprises in China is of great significance for China's pharmaceutical enterprises. Then, foreign patent strategy of the pharmaceutical companies have what characteristics? What are the manifestations? Existing research on these issues are yet to give clear explanations to these questions as a starting point for research. The main topic of research, information collection, statistical analysis, case studies, comparative analysis method, amount ranked top of several foreign pharmaceutical companies from 2005 to 2007 patent data analysis, with the amount of application for patent in China classification of the International Patent Classification table, combined with their own characteristics, summed up the various corporate patent strategy, patent strategy for the development of China's pharmaceutical enterprises to provide a reference for specific research contents are as follows: foreign pharmaceutical companies in the existing research data to determine ranking of patent applications in China, to elect the top of several companies, AstraZeneca, Roche, Pfizer and Eli Lilly and Company, determined as the name of the application (patent) people and knowledge at the national Property Office patent information database to retrieve their patent applications from 2005 to 2007. The necessary acquisition of information in the patent application to extract application number, filing date, Publication date, priority number, abstract, claims and other necessary information, then these information processing, classification and statistics, the results from both directions of time layout, technical layout analysis, technical layout classification from two aspects of the therapeutic activity and chemical composition, and thus presumed patented core products and peripheral products from foreign pharmaceutical companies in the Chinese market, and from the research of how formation of patent strategic thinking, summed up the characteristics of their patent strategy. Eventually, in order to provide reference for China's pharmaceutical enterprises in the process of implementation of patent strategy.
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