- All sections
- B - Performing operations; transporting
- B21J - Forging; hammering; pressing metal; riveting; forge furnaces
- B21J 5/02 - Die forging; Trimming by making use of special dies
Patent holdings for IPC class B21J 5/02
Total number of patents in this class: 383
10-year publication summary
58
|
41
|
53
|
48
|
43
|
32
|
22
|
22
|
22
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Nippon Steel Corporation | 5649 |
29 |
Nippon Steel & Sumitomo Metal Corporation | 1990 |
22 |
NSK Ltd. | 2719 |
16 |
Hitachi Metals, Ltd. | 2175 |
14 |
NTN Corporation | 5008 |
14 |
Bharat Forge Ltd. | 35 |
6 |
Rolls-Royce PLC | 2944 |
5 |
Sungjin Fo-ma Inc. | 9 |
5 |
Honda Motor Co., Ltd. | 24537 |
4 |
ThyssenKrupp Presta AG | 1069 |
4 |
Rtx Corporation | 8674 |
4 |
Toyota Motor Corporation | 28582 |
3 |
Denso Corporation | 23338 |
3 |
Showa Denko K.K. | 2539 |
3 |
Agency for Science, Technology and Research | 3512 |
3 |
CDP Bharat Forge GmbH | 7 |
3 |
CITIC Dicastal CO., LTD | 531 |
3 |
Eaton Capital | 9 |
3 |
JFE Steel Corporation | 6067 |
3 |
Kobe Steel, Ltd. | 912 |
3 |
Other owners | 233 |