Lee, Yong-Gil Lee, Jeong-Dong Song, Yong-Il 2024-01-21T02:35:34Z 2024-01-21T02:35:34Z 2021-09-01 2006-08 1225-6463 https://pubs.kist.re.kr/handle/201004/135306 From its foundation until 2004, ETRI has registered over 1,000 US patents This letter analyzes the characteristics of these patents and addresses the explanatory factors affecting their citation counts. For explanatory variables, research team related variables, invention specific variables, and geographical domain related variables are suggested. Zero-altered count data models are used to test the impact of independent variables. A key finding is that technological cumulativeness, the scale of invention, outputs in the electronic field, and the degree of dependence on the US technology domain positively affect the citation counts of ETRI-invented US patents. The magnitude of international presence appears to negatively affect the citation counts of ETRI-invented US patents. English ELECTRONICS TELECOMMUNICATIONS RESEARCH INST REGRESSION An analysis of citation counts of ETRI-invented US patents Article 10.4218/etrij.06.0206.0019 1 ETRI JOURNAL, v.28, no.4, pp.541 - 544 ETRI JOURNAL 28 4 541 544 scie scopus kci 000239646900020 2-s2.0-33747191709 Engineering, Electrical & Electronic Telecommunications Engineering Telecommunications Letter REGRESSION ETRI-invented US patents citation counts zero-altered model technological cumulativeness US technology domain