Patent holdings for IPC class B21D 24/00

Total number of patents in this class: 342

10-year publication summary

22
30
30
21
32
21
19
14
20
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Nippon Steel Corporation
6661
75
Nippon Steel & Sumitomo Metal Corporation
1985
45
JFE Steel Corporation
7308
43
Sumitomo Heavy Industries, Ltd.
2029
19
Stolle Machinery Company, LLC
464
12
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION)
12524
9
Toyo Seikan Co., Ltd.
610
8
H-one Co., Ltd.
22
7
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
2832
6
Futaba Industrial Co., Ltd.
355
5
G-Tekt Corporation
49
5
Nisshin Steel Co., Ltd.
390
5
Ball Corporation
393
4
Toyoda Iron Works Co., Ltd.
294
4
Unipres Corporation
70
4
Aisin Takaoka Co., Ltd.
97
3
Mazda Motor Corporation
3255
3
POSCO Co., Ltd.
1653
3
Standard Lifters, Inc.
98
3
Honda Motor Co., Ltd.
25846
2
Other owners 77