- All sections
- B - Performing operations; transporting
- 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: 733
10-year publication summary
|
51
|
50
|
37
|
43
|
71
|
57
|
52
|
39
|
34
|
7
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6067 |
73 |
| Nippon Steel Corporation | 5649 |
64 |
| SMS Group GmbH | 1029 |
52 |
| Primetals Technologies Austria GmbH | 479 |
46 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
21 |
| Novelis Inc. | 656 |
20 |
| ArcelorMittal | 1887 |
19 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
18 |
| SMS Siemag Aktiengesellschaft | 529 |
18 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
17 |
| POSCO | 2222 |
17 |
| Primetals Technologies Germany GmbH | 180 |
17 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 1583 |
17 |
| Sumitomo Metal Industries, Ltd. | 453 |
11 |
| Cockerill Maintenance & Ingenierie SA | 82 |
9 |
| Primetals Technologies Japan, Ltd. | 143 |
9 |
| Wisdri Engineering & Research Incorporation Limited | 132 |
8 |
| Fives DMS | 36 |
7 |
| SMS Demag AG | 171 |
7 |
| Siemens AG | 24990 |
6 |
| Other owners | 277 |