Want to know what are the indicators to judge the importance of patents when doing patent analysis?

Main indicators ① Number of patents. The number of patents in a certain technical category can be used to measure the level of technical activities in this technical field; The number of patents applied by a company or patentee over the years reflects the occurrence, development process and development trend of its technological activities. The number of patents can be used to compare the output of technological activities and the intention of seeking industrial property protection in different countries in different periods and fields. ② The number of patents in the same family. The number of patent families of an invention reflects the breadth of the company's patent application field and the potential value of this invention. Because of the cost of translation and special legal help, it is much more expensive to apply for a patent abroad than in your own country. Only those inventions recognized by the company as having the most commercial value will be patented in many countries to protect the exclusive rights of future investment and product export. ③ Number of patent citations. The number of times a patent is cited by subsequent patents can reflect the importance of this patent, because an important patent will be accompanied by a large number of improved patents, and this important patent will be repeatedly cited by improved patents. Citation reveals the relationship between patents, which can be used to track the patent network corresponding to different technologies and find the patents at the intersection of different technologies. Unfortunately, the patent database in China can't provide the number of patents cited, which is a pity. (4) patent growth rate. The patent growth rate measures the percentage of the number of patents growing with time, which can show whether the change of technological innovation with time is increasing or slowing down. For example, the quarterly growth rate of patents is to compare the number of patents obtained by enterprises in a certain quarter with the number of patents obtained in the previous quarter, and calculate the percentage rate of increase or decrease of the number of patents obtained in this quarter compared with the previous quarter. The annual growth rate of patents is the percentage of patent growth compared with the previous year, which is used to measure the change of technical activities in the past year. ⑤ Scientific relevance. Scientific relevance measures the number of scientific papers or research reports cited by patents (subject patents) and the relationship between patented technology and cutting-edge scientific research. The value of scientific correlation is industry-dependent: the average value of scientific correlation in machinery industry is close to zero, while that in high-tech biochemical industry may be as high as 15. ⑥ Technology life cycle. The technology life cycle measures the average number of years of patent technology cited in the title page of enterprise patent application documents. Therefore, the technology life cycle can be understood as a period between the latest patent and the earliest patent. If the technology life cycle is short, it means that efforts are being made to develop a relatively new technology, and the development and innovation of this technology are very fast. The technology life cycle is industry-dependent, and the technology cycle of popular industries is relatively short, such as electronics for about 3-4 years, medicine for 8-9 years, and shipbuilding 15 years. ⑦ Patent efficiency. Patent efficiency measures the patent quantity output created by a certain R&D expenditure, which is used to evaluate the scientific research ability and cost efficiency of the enterprise's patent quantity output within a predetermined time. The more patents are produced, the higher the patent efficiency, and the stronger the technological research and development capability of enterprises. (8) Patent implementation rate. Whether the patent implementation rate can be effectively implemented and whether it can bring about scientific and technological innovation is still unknown for those patented technologies that have not yet been implemented. The implementation of general invention patents goes through a development process, and development is not always successful. Many invention patent technologies have to be abandoned halfway or finally given up because of technical difficulties that cannot be solved or expected results can not be achieved under the existing technical conditions. The implementation of invention patent can be measured from the aspects of technical performance, economic benefits, social benefits, market factors, industrial development and production capacity, macro-environment and industrialization risks. The higher the patent implementation rate, the greater the contribution of patents to technological development and innovation, and the closer the combination with technological development. The patent implementation rate in China is only about 30%, which is far lower than that in Europe, America and Japan. Pet-name ruby industry standardization index. In the cross-industry horizontal comparison, the differences between industries bring trouble to the comparison of patent index values between different industries, so it is necessary to use industry standardized indicators. The industry standardization index value is obtained by dividing the index value of an enterprise by the average index value of the industry in which the enterprise is located. For example, there are 30 enterprises in the chemical industry, and the average value of their scientific relevance is 3.7, so the standard index value of each chemical enterprise's scientific relevance should be the index value of each enterprise's scientific relevance divided by 3.7. In this way, we can eliminate the different influences brought by different industries, and then find out the best-performing enterprises in each industry.