What are the commonly used patent information analysis methods?

Commonly used patent information analysis methods include quantitative analysis method and qualitative analysis method. Quantitative analysis method mainly refers to the method of making statistics on relevant patent information and drawing conclusions from it. The statistical object is the number of patents, which can be counted from different angles such as patent classification, patentee, year and country. According to the statistics of a certain kind of patents, we can know which technical fields are active, which technologies have made breakthroughs and which technologies will be eliminated; According to the regional and national distribution statistics of a certain type of patent, we can know the market structure of the product; According to the statistics of the implementation period of a patent, we can know its economic value and so on. Through the quantitative analysis of patent literature, the development direction of technology and the positioning of enterprises are predicted, so as to formulate the corresponding enterprise development strategy. Qualitative analysis refers to the method of understanding the development level and protection scope of a technology by summarizing and analyzing the substantive contents of patent documents. Qualitative analysis generally takes abstracts, claims, specifications, cited documents (China patents have no cited documents), patents of the same subject, etc. , and research and analyze patent documents around specific research topics. Qualitative analysis is more suitable for micro-technical analysis and competitor analysis. Qualitative analysis is highly technical and professional, which requires the close cooperation of patent workers and professional and technical personnel. Patent chart analysis method is also often used for quantitative analysis and qualitative analysis. Patent chart analysis is to sort out and classify the relevant patent information, and then compile it into a clear table or chart for easy analysis and research. According to different purposes, we can choose different data to compile various types of patent maps to serve the business decision-making and patent strategy formulation of enterprises. Patent chart analysis method can be used for visual quantitative analysis or qualitative analysis.