- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 27/00 - Rolls; Lubricating, cooling or heating rolls while in use
Patent holdings for IPC class B21B 27/00
Total number of patents in this class: 188
10-year publication summary
|
26
|
12
|
24
|
13
|
12
|
12
|
16
|
5
|
11
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 2175 |
23 |
| ThyssenKrupp Steel Europe AG | 924 |
22 |
| JFE Steel Corporation | 6067 |
12 |
| Mitsubishi-Hitachi Metals Machinery, Inc. | 61 |
5 |
| Novelis Inc. | 656 |
5 |
| Praxair S.T. Technology, Inc. | 133 |
5 |
| ArcelorMittal | 1887 |
4 |
| POSCO | 2222 |
4 |
| Akers AB | 10 |
3 |
| SMS Group GmbH | 1029 |
3 |
| ThyssenKrupp Rasselstein GmbH | 72 |
3 |
| Victaulic Company | 664 |
3 |
| Walzen-service-center GmbH | 3 |
3 |
| Arconic Technologies LLC | 219 |
3 |
| Sabic Innovative Plastics IP B.V. | 683 |
2 |
| Airbus Defence and Space SAS | 502 |
2 |
| Constellium Issoire | 208 |
2 |
| Daetwyler Graphics AG | 5 |
2 |
| Hydro Aluminium Rolled Products GmbH | 118 |
2 |
| Kubota Corporation | 3054 |
2 |
| Other owners | 78 |