Dong H.-RHuang M.-H.MU-HSUAN HUANG2022-04-252022-04-252021https://www.scopus.com/inward/record.uri?eid=2-s2.0-85112645490&partnerID=40&md5=553c9a66f5a6d7b83dec383c1518062bhttps://scholars.lib.ntu.edu.tw/handle/123456789/607790Effect of firm size on patent maintenance lengthconference paper2-s2.0-85112645490