- All sections
- B - Performing operationstransporting
- B21B - Rolling of metal
- B21B 27/03 - Sleeved rolls
Patent holdings for IPC class B21B 27/03
Total number of patents in this class: 73
10-year publication summary
|
7
|
11
|
6
|
6
|
1
|
7
|
2
|
6
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 1973 |
13 |
| SMS Group GmbH | 1131 |
5 |
| Maxterial, Inc. | 37 |
4 |
| Fujico Co., Ltd. | 17 |
3 |
| Sandvik Intellectual Property AB | 1475 |
3 |
| Jiangsu Runfu Mechanical Roll Manufacturing Co., Ltd | 6 |
3 |
| Siemens AG | 24386 |
2 |
| SNECMA Propulsion Solide | 46 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 716 |
2 |
| Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH | 65 |
2 |
| JFE Steel Corporation | 6935 |
2 |
| Mitsubishi Materials Corporation | 2458 |
2 |
| SMS Siemag Aktiengesellschaft | 505 |
2 |
| Steinhoff GmbH & Cie. OHG | 2 |
2 |
| Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG | 81 |
2 |
| Jiangsu Kangrui New Material Technology Co., Ltd. | 32 |
2 |
| Illinois Tool Works Inc. | 11503 |
1 |
| Siemens VAI Metals Technologies GmbH | 221 |
1 |
| Aktiebolaget SKF | 2983 |
1 |
| Ebner Industrieofenbau GmbH | 141 |
1 |
| Other owners | 18 |