- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 45/00 - Devices for surface treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
Patent holdings for IPC class B21B 45/00
Total number of patents in this class: 314
10-year publication summary
|
17
|
15
|
13
|
20
|
17
|
26
|
12
|
22
|
20
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7692 |
37 |
| SMS Group GmbH | 1221 |
31 |
| Nippon Steel Corporation | 7102 |
19 |
| Primetals Technologies Austria GmbH | 584 |
19 |
| Danieli & C. Officine Meccaniche S.p.A. | 727 |
14 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 962 |
11 |
| POSCO | 2143 |
9 |
| Primetals Technologies Japan, Ltd. | 182 |
8 |
| Baoshan Iron & Steel Co., Ltd. | 1138 |
7 |
| ABP Induction Systems GmbH | 51 |
6 |
| ArcelorMittal | 2761 |
6 |
| TMEIC Corporation | 951 |
6 |
| Novelis Inc. | 791 |
5 |
| SMS Siemag Aktiengesellschaft | 483 |
5 |
| Nisshin Steel Co., Ltd. | 381 |
4 |
| Baosteel Zhanjiang Iron & Steel Co., Ltd. | 11 |
4 |
| Hitachi Metals, Ltd. | 1813 |
3 |
| Materion Corporation | 326 |
3 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 49 |
3 |
| POSCO Co., Ltd. | 2034 |
3 |
| Other owners | 111 |