Own Related Research Interests Mapping the Evolving of Patent Assignees Collaborations Networks Analyzing collaboration characters between assignees, mining the factors affect collaboration, predicting collaboration or patent transfer, seeking collaborators for detecting competitors . Fig：Patent Assignees Collaboration Networks of CAS, 1985-2009 Fig：Patent Assignees topics correlation Networks of CAS, 1985-2009 Challenges i)Data cleaning Inventors sometimes would be added to the assignees list at some primary stages of patent applications according to the patent laws of different countries. In order to avoiding the interference of the wrong recording information, we should delete all the individual assignees from the assignees list. A B Fig：Patent Assignees Collaboration Networks of Subject Cellulase A-including individuals, B- individuals deleted ii) How to be more readable? Especially when the number of nodes and links is huge. Yunwei Chen - CV Associate Professor of Information Science at Chengdu Library of the Chinese Academy of Sciences (CAS). Research Interests Includs: Patent Analysis, SNA, Science Mapping, especially do these in the subject of Industrial Biotechnology. Education: • • • Ph.D. in Information Science, University of Chinese Academy of Sciences, 2013 Master of Biology, Sichuan University, 2004 Bachelor of Biology, Sichuan University, 2001 Selected Publications: • • • • CHEN Yunwei, BÖRNER Katy, FANG Shu. Evolving collaboration networks in scientometrics in 1978-2010: a micromacro analysis. Scientometrics, 2013, 95(3):1051-1070. CHEN Yunwei, YANG zhiping, FANG Shu, et al. A Patent based Evaluation of technological innovation capability in Eight Economic Regions in P.R. China. World Patent Information. 2009, 31(2), 104-110. Yunwei Chen, Shu Fang. Identifying the Evolution of Patent Assignees Collaboration Networks - A Case of Chinese Academy of Sciences (CAS). Proceedings of the 8th International Conference on Webmetrics, Informetrics and Scientometrics (WIS) and the 13th COLLNET Meeting. 23-26 OCT 2012, SEOUL, KOREA, 168-175. Yunwei Chen, Shu Fang. Patent Assignees’ Collaboration Evolution Networks of CAS, China. Proceedings of issi 2011. 4-7,July, 2011, Durban, South Africa. - 13TH INTERNATIONAL CONFERENCE OF THE INTERNATIONAL SOCIETY FOR SCIENTOMETRICS AND INFORMETRICS, VOL , 2011:952-954.