Paper Title
Identification of Technology Innovation for Mangostene (Garcinia Mangostana Linn.) Development Based on Patent Application in the World

The purpose of this paper is to analyze the network structure of technology innovation for mangosteen, and the evolution of their relations. This paper analyzes the co-classification of International Patent Classification (IPC) among patents in functional food technology, particularly in mangosteen (Garcinia mangostana Linn), using the patent data in World Intellectual Property Organization (WIPO) database from 1994 to 2018. We devide the time span into five slice to analyze different levels of aggregation, and observe the changes happened in these 25 years: 1994-1998, 1999-2003, 2004-2008, 2009-2013, 2014-2018. The paper applies Girvan-Newman algorithm in the clustering process, and uses co-classification networks to unfold technology network structure. Therefore, formed technology clusters can be compared between time periods. The key of technological class field development trend are identified: Human Necessities, Chemistry, and Mettalurgy. The connections and integration between different technologie cluster are found. Moreover, the dynamic evolution between networks in different time periods reveals that food and foodstuff; prep medical, dental, toilet purposes; are the center of technology development. Keywords - Mangostene, Data, Social Network Analysis. Girvan-Newman algorithm, Patent co-classification