Patent analysis methods are divided into quantitative analysis and qualitative analysis.
Quantitative analysis, also known as statistical analysis, mainly carries out statistical analysis through the appearance characteristics of patent documents, that is, identifies relevant documents through the inherent items of patent documents, such as application date, applicant, classification category and country of application. Then, according to the relevant indicators, these patent documents are statistically analyzed, such as the number of patents, the number of patents in the same subject, and the number of patent citations. , and explain the changes of relevant statistical data from a technical and economic point of view, so as to obtain the information of dynamic development trend.
Qualitative analysis, also known as technical analysis, is to identify patents according to the technical content or "quality" of patents such as patent specifications, claims and drawings, and merge related patents according to technical characteristics to make them orderly, which is generally used to obtain information such as technical trends, enterprise trends and specific rights status.
Usually, in patent analysis, it is necessary to combine quantitative analysis with qualitative analysis, that is, to combine appearance characteristics with content characteristics to achieve better analysis results.