- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 1/28 - 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 bands or sheets of indefinite length in a continuous process by cold-rolling
Patent holdings for IPC class B21B 1/28
Total number of patents in this class: 74
10-year publication summary
|
5
|
4
|
6
|
4
|
3
|
9
|
3
|
11
|
4
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7632 |
20 |
| SMS Group GmbH | 1207 |
11 |
| Baoshan Iron & Steel Co., Ltd. | 1128 |
3 |
| Nippon Steel Corporation | 6982 |
3 |
| Outokumpu Nirosta GmbH | 18 |
2 |
| Outokumpu Oyj | 268 |
2 |
| Primetals Technologies Germany GmbH | 226 |
2 |
| Tata Steel Ijmuiden B.V. | 329 |
2 |
| ThyssenKrupp Steel Europe AG | 996 |
2 |
| Compagnie Generale des Etablissements Michelin | 4980 |
2 |
| Jiangsu Yongjin Metal Technology Co., Ltd | 10 |
2 |
| Airbus Operations GmbH | 3463 |
1 |
| Hitachi Metals, Ltd. | 1822 |
1 |
| Siemens VAI Metals Technologies GmbH | 202 |
1 |
| ArcelorMittal France | 68 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 721 |
1 |
| Keystone Tower Systems, Inc. | 47 |
1 |
| Korea Institute of Machinery and Materials | 51 |
1 |
| The Material Works, Ltd. | 18 |
1 |
| Nucor Corporation | 418 |
1 |
| Other owners | 14 |