- 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: 274
10-year publication summary
|
22
|
17
|
15
|
13
|
20
|
17
|
25
|
12
|
21
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6840 |
33 |
| SMS Group GmbH | 1125 |
24 |
| Nippon Steel Corporation | 6238 |
16 |
| Danieli & C. Officine Meccaniche S.p.A. | 714 |
13 |
| Primetals Technologies Austria GmbH | 532 |
13 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 995 |
12 |
| POSCO | 2186 |
9 |
| Baoshan Iron & Steel Co., Ltd. | 964 |
7 |
| Novelis Inc. | 750 |
6 |
| SMS Siemag Aktiengesellschaft | 505 |
5 |
| ArcelorMittal | 2285 |
4 |
| Nisshin Steel Co., Ltd. | 394 |
4 |
| Baosteel Zhanjiang Iron & Steel Co., Ltd. | 11 |
4 |
| TMEIC Corporation | 776 |
4 |
| Hitachi Metals, Ltd. | 1982 |
3 |
| ABP Induction Systems GmbH | 46 |
3 |
| Materion Corporation | 309 |
3 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 55 |
3 |
| POSCO Co., Ltd. | 1568 |
3 |
| Primetals Technologies Japan, Ltd. | 165 |
3 |
| Other owners | 102 |