Top five patent applicants in the Korea railway industry (1990–2023)
| Rank | Applicant | No. of Patents Filed (Patent Share) |
|---|---|---|
| 1 | Korea Railroad Research Institute (KRRI) | 818 (18.8%) |
| 2 | Hyundai-Rotem Co. | 466 (10.7%) |
| 3 | Daewoo Heavy Industries | 205 (4.7%) |
| 4 | Korea Railroad Corporation | 104 (2.4%) |
| 5 | Hyundai Mobis Co. Ltd. | 65 (1.5%) |
| Rank | Applicant | No. of Patents Filed (Patent Share) |
|---|---|---|
| 1 | Korea Railroad Research Institute ( | 818 (18.8%) |
| 2 | Hyundai-Rotem Co. | 466 (10.7%) |
| 3 | Daewoo Heavy Industries | 205 (4.7%) |
| 4 | Korea Railroad Corporation | 104 (2.4%) |
| 5 | Hyundai Mobis Co. Ltd. | 65 (1.5%) |
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