- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession 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: 457
10-year publication summary
|
37
|
33
|
21
|
44
|
30
|
23
|
27
|
24
|
24
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| SMS Group GmbH | 1029 |
42 |
| Danieli & C. Officine Meccaniche S.p.A. | 680 |
40 |
| POSCO | 2222 |
31 |
| Primetals Technologies Austria GmbH | 479 |
23 |
| SMS Siemag Aktiengesellschaft | 529 |
21 |
| Nippon Steel Corporation | 5649 |
17 |
| Siemens VAI Metals Technologies GmbH | 233 |
13 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
12 |
| Nucor Corporation | 425 |
11 |
| Novelis Inc. | 656 |
10 |
| SMS Demag AG | 171 |
10 |
| Primetals Technologies Germany GmbH | 180 |
7 |
| Jiangsu Shagang Group Co., Ltd. | 52 |
7 |
| BlueScope Steel Limited | 223 |
6 |
| IHI Corporation | 3268 |
6 |
| POSCO Co., Ltd. | 1059 |
6 |
| Salzgitter Flachstahl GmbH | 155 |
6 |
| Institute of Research of Iron & Steel, Jiangsu Province/sha-steel, Co., Ltd. | 23 |
6 |
| Arvedi, Giovanni | 12 |
5 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 61 |
5 |
| Other owners | 173 |