- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
Patent holdings for IPC class B21B 1/46
Total number of patents in this class: 469
10-year publication summary
|
31
|
21
|
42
|
31
|
23
|
27
|
23
|
24
|
27
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SMS Group GmbH | 1127 |
46 |
| Danieli & C. Officine Meccaniche S.p.A. | 718 |
45 |
| POSCO | 2184 |
31 |
| Primetals Technologies Austria GmbH | 537 |
29 |
| SMS Siemag Aktiengesellschaft | 507 |
21 |
| Nippon Steel Corporation | 6296 |
17 |
| Siemens VAI Metals Technologies GmbH | 222 |
12 |
| Baoshan Iron & Steel Co., Ltd. | 965 |
12 |
| Novelis Inc. | 752 |
11 |
| Nucor Corporation | 416 |
9 |
| Primetals Technologies Germany GmbH | 203 |
8 |
| Jiangsu Shagang Group Co., Ltd. | 92 |
8 |
| POSCO Co., Ltd. | 1570 |
7 |
| SMS Demag AG | 98 |
6 |
| Nanjing Iron&Steel Co.,Ltd. | 165 |
6 |
| Institute of Research of Iron & Steel, Jiangsu Province/sha-steel, Co., Ltd. | 31 |
6 |
| BlueScope Steel Limited | 208 |
5 |
| IHI Corporation | 3449 |
5 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 55 |
5 |
| Salzgitter Flachstahl GmbH | 159 |
5 |
| Other owners | 175 |