• All sections
  • B - Performing operationstransporting
  • B21B - Rolling of metal
  • B21B 1/46 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting

Patent holdings for IPC class B21B 1/46

Total number of patents in this class: 465

10-year publication summary

33
21
44
31
23
27
24
24
27
6
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Danieli & C. Officine Meccaniche S.p.A.
703
43
SMS Group GmbH
1084
43
POSCO
2204
31
Primetals Technologies Austria GmbH
516
25
SMS Siemag Aktiengesellschaft
514
21
Nippon Steel Corporation
6047
17
Siemens VAI Metals Technologies GmbH
226
12
Baoshan Iron & Steel Co., Ltd.
910
12
Novelis Inc.
706
11
Nucor Corporation
420
10
Primetals Technologies Germany GmbH
196
8
Jiangsu Shagang Group Co., Ltd.
74
8
POSCO Co., Ltd.
1341
7
BlueScope Steel Limited
213
6
IHI Corporation
3373
6
SMS Demag AG
126
6
Nanjing Iron&Steel Co.,Ltd.
155
6
Institute of Research of Iron & Steel, Jiangsu Province/sha-steel, Co., Ltd.
28
6
Mitsubishi-Hitachi Metals Machinery, Inc.
58
5
Salzgitter Flachstahl GmbH
155
5
Other owners 177