Research On Competition Situation Of Graphene Technology Based On Patent Data

Graphene was considered to be a very peculiar material after it was released in 2004,and its related technology is in a stage of rapid development.Some scientists even predicted that it would "completely change the 21st century".Graphene is currently widely used in transistors,flexible displays,and new energy batteries.For example,graphene is an important material for battery manufacturing in terms of energy storage.Therefore,on a global scale,graphene has become the focus of research institutions in various countries.It is very necessary for research institutions and R&D personnel in the field of graphene to understand the research status of other countries and institutions at home and abroad.Under the new and complex information resources environment,it is more and more difficult for researchers to obtain relevant information.In order to demonstrate patent data in the graphene field,this study analyzes the technical content of graphene patents.Through such a method of measurement and visualization of patent documents,it is possible to visualize the history of the development of graphene technology.The technology involved and the composition and development direction of the patentee.In this paper,the patent measurement and other research methods are introduced into the situation analysis in the field of graphene,mainly including the following work:The first is to elaborate the purpose and significance of this study and introduce the research methods cited in this article.This is followed by a review of the theory of technological competitive intelligence,a review of empirical studies,and a review of research related to graphene patenting.The second is to analyze the overall technical competition in the field of graphene.In this study,the patents of all the graphene in the DI database were selected as the analysis objects.According to the patents of R&D countries,the distribution of graphene-related patents in the country and the trend of graphene patents in various countries were analyzed.It was found that the graphene Olefin accounted for the highest number of patents in China in recent years in the field of graphene patent applications showed a rapid rise in the state.Secondly,we identify the basic technical fields of graphene technology and analyze the development and changes of key technical fields over time.Finally,through the display of the patent map,the overall technology field of hot technology.The third is the analysis of the technological competitiveness of enterprises and the cooperation.In the part of the analysis of technological competitiveness of enterprises,firstly,we take 314 enterprises as the analysis object and analyze the overall patent in graphene field and the number of patent applications in recent five years and compare the number of patents in the past 5 years.Is the overall or nearly 5 years,in the application for the top 20 companies accounted for the majority of Chinese enterprises.Secondly,through the comprehensive analysis of multiple indicators,the quality of the selected companies is evaluated and the core patents owned by the enterprises are analyzed.It is found that some enterprises that do not have competitive advantages in the number of patent applications have higher patent quality,and there is no Chinese business.Finally,through the Derwent manual code to screen out the application of graphene code,the selected companies in the field of patent portfolio analysis,the division of the technological competitive position of enterprises.In the analysis of cooperation,social networks are used to present the situation of business cooperation.Through the study of this paper,we have reached the following conclusions:In terms of the number of applications,Chinese graphene patents have the largest number of patent applications and rapid development;the application of graphene has attracted much attention;the research and development of research and development technology has not diminished;the number and quality of patents for enterprises as a whole not directly proportional to the number of patent applications for a small number of patents,corporate quality is better;different companies have technical advantages in different sub-fields;there is little close cooperation between companies.Finally,a proposal was made for companies that conduct research and development related to graphene in China.