8.1.2 Patent application trends Figure 8.1 shows the total number of patent applications (direct and Patent Cooperation Treaty (PCT) national phase entry) filed in the Republic of Korea from 2000 to 2021. Figure 8.1 Patent applications filed in the Republic of Korea, 2000–2021 Source: WIPO IP Statistics Data Center, available at www3.wipo.int/ipstats/index.htm?tab=patent