- All sections
- B - Performing operationstransporting
- B21J - Forginghammeringpressing metalrivetingforge furnaces
- B21J 9/02 - Special design or construction
Patent holdings for IPC class B21J 9/02
Total number of patents in this class: 209
10-year publication summary
|
23
|
25
|
18
|
26
|
23
|
13
|
14
|
15
|
16
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NSK Ltd. | 2763 |
33 |
| Aktiebolaget SKF | 2916 |
8 |
| NTN Corporation | 4979 |
7 |
| National Machinery LLC | 42 |
7 |
| SMS Group GmbH | 1107 |
6 |
| Karsten Manufacturing Corporation | 3176 |
5 |
| Cell Impact AB | 20 |
4 |
| Nippon Steel Corporation | 6136 |
4 |
| Samsung Display Co., Ltd. | 34061 |
3 |
| Rolls-Royce PLC | 3027 |
3 |
| JTEKT Corporation | 2478 |
3 |
| Magna International Inc. | 1217 |
3 |
| Schuler Pressen GmbH | 142 |
3 |
| Eaton Intelligent Power Limited | 5919 |
3 |
| Serim T&D Co., Ltd. | 5 |
3 |
| Sungjin Fo-ma Inc. | 9 |
3 |
| PDInnovative LLC | 15 |
3 |
| Toyota Motor Corporation | 31237 |
2 |
| Hitachi Metals, Ltd. | 1990 |
2 |
| Hyundai Motor Company | 21406 |
2 |
| Other owners | 102 |