- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 37/46 - Roll speed or drive motor control
Patent holdings for IPC class B21B 37/46
Total number of patents in this class: 97
10-year publication summary
|
5
|
5
|
6
|
10
|
4
|
9
|
6
|
8
|
3
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Primetals Technologies Germany GmbH | 203 |
11 |
| SMS Group GmbH | 1127 |
9 |
| Siemens AG | 24461 |
7 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 996 |
6 |
| Nippon Steel Corporation | 6271 |
5 |
| The Bradbury Company, Inc. | 43 |
4 |
| Danieli & C. Officine Meccaniche S.p.A. | 717 |
4 |
| Primetals Technologies Japan, Ltd. | 165 |
4 |
| Primetals Technologies USA LLC | 117 |
3 |
| TMEIC Corporation | 777 |
3 |
| Baoshan Iron & Steel Co., Ltd. | 963 |
2 |
| Hegenscheidt-MFD GmbH & Co. KG | 68 |
2 |
| Hyundai Steel Company | 430 |
2 |
| JFE Steel Corporation | 6853 |
2 |
| POSCO | 2186 |
2 |
| Primetals Technologies Austria GmbH | 535 |
2 |
| Mitsubishi Heavy Industries, Ltd. | 8735 |
1 |
| Hitachi, Ltd. | 15499 |
1 |
| Siemens VAI Metals Technologies GmbH | 222 |
1 |
| Siemens Industry, Inc. | 1447 |
1 |
| Other owners | 25 |