- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 28/02 - Maintaining rolls in effective condition, e.g. reconditioning
Patent holdings for IPC class B21B 28/02
Total number of patents in this class: 34
10-year publication summary
|
0
|
2
|
3
|
5
|
4
|
0
|
1
|
3
|
1
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| POSCO | 2177 |
6 |
| SMS INNSE S.p.A. | 22 |
4 |
| Tenova S.p.A. | 154 |
4 |
| LG Chem, Ltd. | 17686 |
2 |
| Siemens VAI Metals Technologies SAS | 63 |
2 |
| SMS Demag AG | 88 |
2 |
| SMS Siemag Aktiengesellschaft | 504 |
2 |
| Siemens VAI Metals Technologies GmbH | 214 |
1 |
| Hegenscheidt-MFD GmbH & Co. KG | 67 |
1 |
| Hydro Aluminium Rolled Products GmbH | 117 |
1 |
| JFE Steel Corporation | 7012 |
1 |
| Maschinenfabrik Köppern GmbH & Co. KG | 77 |
1 |
| Nippon Steel Corporation | 6452 |
1 |
| Politecnico di Milano | 861 |
1 |
| Primetals Technologies Austria GmbH | 547 |
1 |
| SMS Group GmbH | 1136 |
1 |
| Panasonic Energy Co., Ltd. | 944 |
1 |
| TMEIC Corporation | 803 |
1 |
| Toppan Packaging Americas Holdings, Inc. | 173 |
1 |
| Other owners | 0 |