Lin, B.-W.B.-W.LinChen, C.-J.C.-J.ChenHSUEH-LIANG WUBOU-WEN LINCHUNG-JEN CHEN2020-02-142020-02-142006https://scholars.lib.ntu.edu.tw/handle/123456789/459151Patent portfolio diversity, technology strategy, and firm valuejournal article10.1109/TEM.2005.8618132-s2.0-31744433082https://www.scopus.com/inward/record.uri?eid=2-s2.0-31744433082&doi=10.1109%2fTEM.2005.861813&partnerID=40&md5=59dace64c3e5e58297778983e026da8a