- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 27/03 - Sleeved rolls
Patent holdings for IPC class B21B 27/03
Total number of patents in this class: 72
10-year publication summary
12
|
8
|
11
|
6
|
6
|
1
|
7
|
2
|
4
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hitachi Metals, Ltd. | 2175 |
13 |
SMS Group GmbH | 1029 |
4 |
Fujico Co., Ltd. | 20 |
3 |
Sandvik Intellectual Property AB | 1634 |
3 |
SMS Siemag Aktiengesellschaft | 529 |
3 |
Vesuvius France S.A. | 19 |
3 |
Jiangsu Runfu Mechanical Roll Manufacturing Co., Ltd | 6 |
3 |
Siemens AG | 24990 |
2 |
SNECMA Propulsion Solide | 56 |
2 |
Helmholtz-Zentrum Geesthacht Zentrum für Material-und Küstenforschung GmbH | 67 |
2 |
JFE Steel Corporation | 6067 |
2 |
Mitsubishi Materials Corporation | 2378 |
2 |
Steinhoff GmbH & Cie. OHG | 2 |
2 |
Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG | 84 |
2 |
Jiangsu Kangrui New Material Technology Co., Ltd. | 26 |
2 |
Illinois Tool Works Inc. | 11152 |
1 |
Siemens VAI Metals Technologies GmbH | 233 |
1 |
Aktiebolaget SKF | 2700 |
1 |
Danieli & C. Officine Meccaniche S.p.A. | 680 |
1 |
Diamond Power International, Inc. | 11 |
1 |
Other owners | 19 |