- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 33/00 - Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls
Patent holdings for IPC class B21B 33/00
Total number of patents in this class: 17
10-year publication summary
2
|
0
|
0
|
0
|
3
|
4
|
1
|
3
|
0
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
5 |
POSCO | 2222 |
3 |
Hydro-Quebec | 637 |
2 |
Danieli & C. Officine Meccaniche S.p.A. | 680 |
1 |
Primetals Technologies Japan, Ltd. | 143 |
1 |
Toshiba Mitsubishi-Electric Industrial Systems Corporation | 1583 |
1 |
Yanshan University | 130 |
1 |
Okumtec Technology Wenzhou Co., Ltd | 1 |
1 |
Q-tec Prüfgeräte GmbH | 1 |
1 |
Clecim S.A.S. | 48 |
1 |
Other owners | 0 |