- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 37/28 - Control of flatness or profile during rolling of strip, sheets or plates
Patent holdings for IPC class B21B 37/28
Total number of patents in this class: 114
10-year publication summary
|
6
|
10
|
4
|
11
|
9
|
12
|
6
|
9
|
9
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Primetals Technologies Germany GmbH | 194 |
14 |
| Novelis Inc. | 704 |
12 |
| Primetals Technologies Japan, Ltd. | 152 |
9 |
| JFE Steel Corporation | 6538 |
8 |
| Siemens AG | 24572 |
7 |
| Nippon Steel Corporation | 5991 |
6 |
| ABB Schweiz AG | 6616 |
4 |
| Primetals Technologies Austria GmbH | 509 |
4 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 987 |
4 |
| ArcelorMittal | 2052 |
3 |
| POSCO | 2204 |
3 |
| SMS Group GmbH | 1078 |
3 |
| SMS Siemag Aktiengesellschaft | 515 |
3 |
| ABB AB | 185 |
2 |
| The Bradbury Company, Inc. | 44 |
2 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 58 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
2 |
| Nisshin Steel Co., Ltd. | 398 |
2 |
| Nucor Corporation | 421 |
2 |
| Jiangsu Yongjin Metal Technology Co., Ltd | 10 |
2 |
| Other owners | 20 |