The Korean Economic Forum
Korea Patent Data Project (KoPDP): Contents and Methods
Jihong Lee (Seoul National University), Hyunkyeong Lim (Univ. of Wisconsin- Madison), Sangdong Kim (Seoul National University), Keunsang Song(Seoul National University) and Jae Yu Jung (Seoul National University)Year 2020Vol. 12No. 4
Abstract
In this paper, we describe the contents and methods of “Korea Patent DataProject (KoPDP)”. The project collects all utility patents granted from the KoreaIntellectual Property Office (KIPO) for the period 1948-2016 and the US Patentand Trademark Office (USPTO) for the period 1976-2017. The project alsomatches their assignees to firms in DataGuide 5.0, a Korean financial database.The resulting dataset includes total 14,803 listed and non-listed Korean firmsmatched with their Korean and US patents, in addition to a host of accountingand financial information. Over 45% of all sample KIPO patents and 87% of USpatents assigned to Korean assignees are matched. We explain the detail of ourmatching procedures and also provide a coherent industry classification systemfor both sets of patents.}