• 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