- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 31/02 - Rolling stand frames; Roll mountings
Patent holdings for IPC class B21B 31/02
Total number of patents in this class: 87
10-year publication summary
20
|
5
|
5
|
3
|
6
|
5
|
8
|
5
|
3
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nippon Steel Corporation | 5649 |
9 |
SMS Group GmbH | 1029 |
7 |
Danieli & C. Officine Meccaniche S.p.A. | 680 |
5 |
Rtx Corporation | 8674 |
5 |
SMS Siemag Aktiengesellschaft | 529 |
4 |
Primetals Technologies Austria GmbH | 479 |
3 |
Hefei Baisheng Science & Technology Co., Ltd. | 10 |
3 |
Corts Engineering GmbH & Co. KG | 8 |
2 |
JFE Steel Corporation | 6067 |
2 |
Matthews International Corporation | 350 |
2 |
Nakata Manufacturing Co., Ltd. | 37 |
2 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
2 |
Ortic 3D AB | 9 |
2 |
Primetals Technologies Japan, Ltd. | 143 |
2 |
SMS Demag AG | 171 |
2 |
Yanshan University | 130 |
2 |
Samsung Electronics Co., Ltd. | 131630 |
1 |
Hon Hai Precision Industry Co., Ltd. | 4157 |
1 |
Corts Engineering GmbH & Co.KG | 3 |
1 |
Danieli Automation SpA | 109 |
1 |
Other owners | 29 |