- All sections
- B - Performing operations; transporting
- B21B - Rolling of metal
- B21B 1/38 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets
Patent holdings for IPC class B21B 1/38
Total number of patents in this class: 204
10-year publication summary
17
|
12
|
17
|
18
|
29
|
14
|
18
|
12
|
18
|
7
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
JFE Steel Corporation | 6067 |
28 |
Nippon Steel Corporation | 5649 |
15 |
Baoshan Iron & Steel Co., Ltd. | 832 |
11 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
8 |
Taiyuan University of Technology | 212 |
7 |
ThyssenKrupp Steel Europe AG | 924 |
7 |
ThyssenKrupp AG | 3086 |
6 |
Nippon Steel & Sumikin Stainless Steel Corporation | 171 |
5 |
SMS Group GmbH | 1029 |
5 |
Wickeder Westfalenstahl GmbH | 27 |
5 |
Nanjing Iron&Steel Co.,Ltd. | 135 |
5 |
Jiangsu Kangrui New Material Technology Co., Ltd. | 26 |
4 |
Hitachi Metals, Ltd. | 2175 |
3 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
3 |
POSCO | 2222 |
3 |
Sumitomo Metal Industries, Ltd. | 453 |
3 |
Taiyuan University of Science and Technology | 36 |
3 |
Guasta, Fabrizio | 3 |
3 |
Novelis Koblenz GmbH | 93 |
3 |
The Boeing Company | 19843 |
2 |
Other owners | 75 |