- 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: 212
10-year publication summary
|
25
|
18
|
26
|
23
|
13
|
14
|
15
|
15
|
13
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NSK Ltd. | 2845 |
35 |
| Aktiebolaget SKF | 3156 |
9 |
| NTN Corporation | 4925 |
7 |
| National Machinery LLC | 43 |
7 |
| Karsten Manufacturing Corporation | 3280 |
6 |
| SMS Group GmbH | 1207 |
6 |
| Cell Impact AB | 20 |
4 |
| Nippon Steel Corporation | 6982 |
4 |
| Samsung Display Co., Ltd. | 39087 |
3 |
| Rolls-Royce PLC | 3224 |
3 |
| JTEKT Corporation | 2622 |
3 |
| Schuler Pressen GmbH | 131 |
3 |
| Eaton Intelligent Power Limited | 6276 |
3 |
| Serim T&D Co., Ltd. | 5 |
3 |
| Sungjin Fo-ma Inc. | 9 |
3 |
| PDInnovative LLC | 16 |
3 |
| Toyota Motor Corporation | 36159 |
2 |
| Hitachi Metals, Ltd. | 1822 |
2 |
| Hyundai Motor Company | 24951 |
2 |
| Schaeffler Technologies AG & Co. KG | 11182 |
2 |
| Other owners | 102 |