- 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: 113
10-year publication summary
|
5
|
6
|
10
|
4
|
11
|
9
|
12
|
6
|
8
|
6
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Primetals Technologies Germany GmbH | 180 |
13 |
| Novelis Inc. | 656 |
11 |
| Siemens AG | 24990 |
8 |
| JFE Steel Corporation | 6067 |
8 |
| Primetals Technologies Japan, Ltd. | 143 |
8 |
| Nippon Steel Corporation | 5649 |
6 |
| ABB Schweiz AG | 6321 |
4 |
| Primetals Technologies Austria GmbH | 479 |
4 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 1583 |
4 |
| ArcelorMittal | 1887 |
3 |
| POSCO | 2222 |
3 |
| SMS Group GmbH | 1029 |
3 |
| SMS Siemag Aktiengesellschaft | 529 |
3 |
| ABB AB | 202 |
2 |
| The Bradbury Company, Inc. | 44 |
2 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 61 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
2 |
| Nisshin Steel Co., Ltd. | 401 |
2 |
| Nucor Corporation | 425 |
2 |
| Jiangsu Yongjin Metal Technology Co., Ltd | 10 |
2 |
| Other owners | 21 |