- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 23/00 - Tube-rolling not restricted to methods provided for in only one of groups , e.g. combined processes
Patent holdings for IPC class B21B 23/00
Total number of patents in this class: 97
10-year publication summary
|
8
|
6
|
3
|
3
|
2
|
2
|
3
|
2
|
0
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6982 |
14 |
| Sumitomo Metal Industries, Ltd. | 306 |
12 |
| JFE Steel Corporation | 7632 |
11 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
7 |
| Danieli & C. Officine Meccaniche S.p.A. | 721 |
6 |
| SMS INNSE S.p.A. | 20 |
4 |
| SMS Meer GmbH | 59 |
4 |
| Vallourec Tubes | 29 |
3 |
| Victaulic Company | 622 |
3 |
| Krinner Innovation GmbH | 45 |
2 |
| SMS Group GmbH | 1207 |
2 |
| V & M Deutschland GmbH | 32 |
2 |
| Usui Co., Ltd. | 127 |
2 |
| Toyota Motor Corporation | 36159 |
1 |
| The Boeing Company | 20193 |
1 |
| BorgWarner Inc. | 2586 |
1 |
| Coating Management Switzerland GmbH | 3 |
1 |
| Keystone Tower Systems, Inc. | 47 |
1 |
| KOCKS Technik GmbH & Co. KG | 30 |
1 |
| Kwantex Research Inc. | 34 |
1 |
| Other owners | 18 |