- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 45/02 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
Patent holdings for IPC class B21B 45/02
Total number of patents in this class: 758
10-year publication summary
| 48 | 35 | 42 | 64 | 56 | 49 | 39 | 34 | 37 | 30 | 
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 
Principal owners for this class
| Owner | All patents | This class | 
|---|---|---|
| JFE Steel Corporation | 6998 | 72 | 
| Nippon Steel Corporation | 6414 | 59 | 
| SMS Group GmbH | 1135 | 56 | 
| Primetals Technologies Austria GmbH | 546 | 51 | 
| Novelis Inc. | 766 | 23 | 
| ArcelorMittal | 2349 | 21 | 
| Nippon Steel & Sumitomo Metal Corporation | 1987 | 21 | 
| Danieli & C. Officine Meccaniche S.p.A. | 713 | 19 | 
| SMS Siemag Aktiengesellschaft | 504 | 18 | 
| Baoshan Iron & Steel Co., Ltd. | 971 | 17 | 
| POSCO | 2178 | 17 | 
| Primetals Technologies Germany GmbH | 205 | 17 | 
| Primetals Technologies Japan, Ltd. | 167 | 13 | 
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 987 | 13 | 
| Wisdri Engineering & Research Incorporation Limited | 212 | 11 | 
| Fives DMS | 45 | 9 | 
| Sumitomo Metal Industries, Ltd. | 365 | 9 | 
| Cockerill Maintenance & Ingenierie SA | 80 | 7 | 
| Primetals Technologies USA LLC | 119 | 7 | 
| TMEIC Corporation | 799 | 7 | 
| Other owners | 291 | 
