(1) According to the change of patent application volume (total patent application volume or annual application volume) with time, analyze the development history, overall development trend and current stage (technical maturity) of this technology. (2) According to the patent applications of various products or sub-technologies, predict the development direction and market trend of new technologies, and provide reference for the formulation of the company's development strategy. (3) Analyze manufacturers' technical strategies from the patent amount of different manufacturers in different fields and different technical routes. (4) Analyze manufacturers' technical strategies from the patent amount of different manufacturers in different fields and different technical routes. (5) Patent analysis of key technical issues to find out different technical routes and technical solutions. (6) Make a special analysis of Chinese patents, find out the patents that may conflict with them, and put forward suggestions on avoiding, invalidating and revoking patent rights to prevent infringement of others' patents. (7) Through the analysis and comparison of related patented technologies, determine the technical protection strategy or analyze the patentability of the technology. (8) Search and analyze the legal status and availability of patented technology involved in technology trade to prevent fraud. (9) Analyze the patent applications and authorizations in various countries to determine the market scope of products. The qualitative analysis of patents should be highly targeted. For example, in order to expand exports and occupy foreign markets, in the research and analysis of patent documents and information, we should not only pay attention to the research of domestic patent technical information and patent legal information, but also strengthen the research of technical information and economic information in foreign patent documents. According to the needs of exploring and developing overseas markets, we should also track the market activities of foreign competitors in various countries around the world for different products and technologies, or track their technologies and products in various countries' markets for specific manufacturers. Through such comprehensive research, the development strategy of the company's overseas production or export products is formulated.
During the use of patent documents, the Chemical Research Institute of Lanzhou Chemical Company made patent analysis on foreign production technologies and equipment of benzene, ethylbenzene, styrene and polystyrene. Including patent application and patent protection distribution, patent technology overview, patent point analysis. Through statistics, analysis and research, we can master the history, present situation and development trend of the above-mentioned chemical products and technologies, and put forward and formulate the business strategy for future development according to the production and technology status of benzene, ethylbenzene, styrene and polyethylene in China.