Statistical Analysis and Research on the Authorized Patent of Donghua University

With retrieving the granted patents in 2002-2011 in Donghua University (DHU), the authorized invention patent distribution among colleges and subjects is introduced in this paper, based on the recorded patent database of the China State Intellectual Property Office. This paper can provide useful experiences in the discipline construction, benefiting the characteristics disciplines industry group and multidisciplinary infiltration and research cooperation. In addition, it encourages teachers and students to get more intellectual property rights for schools and improves the overall strength of the university.

Patent portfolio analysis model based on legal status information

Purpose:This research proposes a patent portfolio analysis model based on the legal status information to chart out a competitive landscape in a particular field,enabling organizations to position themselves within the overall technology landscape.Design/methodology/approach:Three indicators were selected for the proposed model:Patent grant rate,valid patents rate and patent maintenance period.The model uses legal status information to perform a qualitative evaluation of relative values of the individual patents,countries or regions’ technological capabilities and competitiveness of patent applicants.The results are visualized by a four-quadrant bubble chart To test the effectiveness of the model,it is used to present a competitive landscape in the lithium ion battery field.Findings:The model can be used to evaluate the values of the individual patents,highlight countries or regions’ positions in the field,and rank the competitiveness of patent applicants in the field.Research limitations:The model currently takes into consideration only three legal status indicators.It is actually feasible to introduce more indicators such as the reason for invalid patents and the distribution of patent maintenance time and associate them with those in the proposed model.Practical implications:Analysis of legal status information in combination of patent application information can help an organization to spot gaps in its patent claim coverage,as well as evaluate patent quality and maintenance situation of its granted patents.The study results can be used to support technology assessment,technology innovation and intellectual property management.Originality/value:Prior studies attempted to assess patent quality or competitiveness by using either single patent legal status indicator or comparative analysis of the impacts of each indicator.However,they are insufficient in presenting the combined effects of the evaluation indicators.Using our model,it appears possible to get a more complete and objective picture of the current competitive situation.

Patent Application, Grant and Patent Law Amendment in China

This study employs 920,108 invention patents from the State Intellectual Property of China(SIPO)to examine the impact of two patent law amendments,which occurred in 1993 and 2001 respectively,on the patent grant.The first patent law amendment in 1993 led to less strict criteria for patent approval.And the second patent law amendment,which occurred in 2001,showed a similar positive impact on patenting as well.It is more likely that the first patent law amendment encouraged foreign applicants to make patent application,because their applications and grant share started to rise after 1993.By contrast,the second patent law amendment played an opposite role by motivating Chinese applicants to make patent application,which is reflected by a rise of application and grant share by Chinese applicants in post-2001 period.Patent grant is viewed as one of the key indicators for judging the patent value.We find that foreign applicants from the U.S.,Japan and European Union have higher patent grant rate than that of Chinese applicants,suggesting that patents held by foreign applicants may have higher potential value than those held by Chinese applicants.Different types of applicants may differ from each other in terms of the patent grant rate,where research institutes have higher patent grant rate than that of corporations and individuals.Since the filed patents in China can enjoy a provisional protection for 3 years at most,some applicants do not request their examination.After an examination of the novelty,inventiveness and practicality of patent,the patent office determines whether to grant it.By using a bivariate probit model,we make an econometric analysis of this case.The result confirms the positive impact of both patent law amendments in 1993 and 2001 on the patent grant.We also find other determinants of the patent grant,for example,R&D human capital investment,applicant’s competitive technology advantage in the patent’s field,and applicant’s research ability,play positive roles in driving applicant to ask for examination.Patent’s complexity plays a positive role in driving the patent office to grant it.We discuss the significance of our study at the end of this paper.