- 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
|
24
|
18
|
25
|
21
|
12
|
14
|
15
|
15
|
12
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NSK Ltd. | 2824 |
35 |
| Aktiebolaget SKF | 3076 |
8 |
| NTN Corporation | 4933 |
7 |
| National Machinery LLC | 44 |
7 |
| SMS Group GmbH | 1167 |
6 |
| Karsten Manufacturing Corporation | 3259 |
5 |
| Cell Impact AB | 20 |
4 |
| Nippon Steel Corporation | 6692 |
4 |
| Samsung Display Co., Ltd. | 37860 |
3 |
| Rolls-Royce PLC | 3183 |
3 |
| JTEKT Corporation | 2554 |
3 |
| Schuler Pressen GmbH | 131 |
3 |
| Eaton Intelligent Power Limited | 6158 |
3 |
| Serim T&D Co., Ltd. | 5 |
3 |
| Sungjin Fo-ma Inc. | 9 |
3 |
| PDInnovative LLC | 15 |
3 |
| Toyota Motor Corporation | 34633 |
2 |
| Hitachi Metals, Ltd. | 1921 |
2 |
| Hyundai Motor Company | 23762 |
2 |
| Schaeffler Technologies AG & Co. KG | 10707 |
2 |
| Other owners | 101 |