- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 31/02 - Rolling stand framesRoll mountings
Patent holdings for IPC class B21B 31/02
Total number of patents in this class: 93
10-year publication summary
|
5
|
5
|
3
|
6
|
5
|
8
|
5
|
4
|
7
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6195 |
10 |
| SMS Group GmbH | 1117 |
7 |
| Danieli & C. Officine Meccaniche S.p.A. | 713 |
5 |
| Rtx Corporation | 9319 |
5 |
| Matthews International Corporation | 332 |
4 |
| SMS Siemag Aktiengesellschaft | 506 |
4 |
| Primetals Technologies Austria GmbH | 529 |
3 |
| Hefei Baisheng Science & Technology Co., Ltd. | 10 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 31084 |
2 |
| Corts Engineering GmbH & Co. KG | 8 |
2 |
| JFE Steel Corporation | 6806 |
2 |
| Nakata Manufacturing Co., Ltd. | 35 |
2 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
2 |
| Ortic AB | 4 |
2 |
| Primetals Technologies Japan, Ltd. | 162 |
2 |
| Yanshan University | 149 |
2 |
| Samsung Electronics Co., Ltd. | 144675 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4040 |
1 |
| Corts Engineering GmbH & Co.KG | 3 |
1 |
| Danieli Automation SpA | 122 |
1 |
| Other owners | 32 |