• All sections
  • B - Performing operationstransporting
  • B21B - Rolling of metal
  • B21B 1/08 - 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 work of special cross-section, e.g. angle steel

Patent holdings for IPC class B21B 1/08

Total number of patents in this class: 81

10-year publication summary

12
8
7
7
4
6
7
1
6
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Nippon Steel Corporation
7098
9
Nippon Steel & Sumitomo Metal Corporation
1980
8
Shandong Iron and Steel Company Ltd
38
3
Cisdi Engineering Co., Ltd.
108
2
JFE Steel Corporation
7675
2
Maanshan Iron & Steel Co. Ltd.
28
2
Voestalpine Krems GmbH
30
2
Cisdi Shanghai Engineering Co., Ltd.
15
2
Hanyoung Machinery
2
2
The Boeing Company
20217
1
Airbus Operations GmbH
3482
1
Caterpillar Inc.
10343
1
Siemens Industry, Inc.
1594
1
Toray Industries, Inc.
7161
1
Hilti Aktiengesellschaft
3728
1
The Furukawa Electric Co., Ltd.
3725
1
Arkema France
4232
1
BorgWarner Inc.
2586
1
The Bradbury Company, Inc.
42
1
Consolidated Metal Products, Inc.
16
1
Other owners 38