- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 1/26 - 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 hot-rolling
Patent holdings for IPC class B21B 1/26
Total number of patents in this class: 268
10-year publication summary
|
25
|
24
|
10
|
20
|
14
|
8
|
11
|
9
|
22
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6557 |
60 |
| Nippon Steel Corporation | 6012 |
35 |
| SMS Group GmbH | 1080 |
15 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
13 |
| Baoshan Iron & Steel Co., Ltd. | 897 |
11 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 58 |
7 |
| Danieli & C. Officine Meccaniche S.p.A. | 705 |
6 |
| Primetals Technologies Austria GmbH | 512 |
6 |
| Sumitomo Metal Industries, Ltd. | 419 |
6 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 988 |
6 |
| Hyundai Steel Company | 350 |
5 |
| POSCO | 2204 |
5 |
| SMS Siemag Aktiengesellschaft | 515 |
5 |
| IHI Corporation | 3359 |
4 |
| Novelis Inc. | 705 |
4 |
| POSCO Co., Ltd. | 1302 |
4 |
| Primetals Technologies Japan, Ltd. | 152 |
4 |
| IHI Metaltech Co., Ltd. | 13 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2906 |
3 |
| Primetals Technologies Germany GmbH | 194 |
3 |
| Other owners | 63 |