- All sections
- B - Performing operationstransporting
- B21J - Forginghammeringpressing metalrivetingforge furnaces
- B21J 9/12 - Drives for forging presses operated by hydraulic or liquid pressure
Patent holdings for IPC class B21J 9/12
Total number of patents in this class: 49
10-year publication summary
|
4
|
4
|
9
|
3
|
6
|
6
|
4
|
3
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cell Impact AB | 20 |
8 |
| Langenstein & Schemann GmbH | 42 |
7 |
| SMS Group GmbH | 1102 |
4 |
| Barnes Group Inc. | 56 |
3 |
| Japan Aeroforge, Ltd. | 9 |
3 |
| NTN Corporation | 4977 |
2 |
| Hubbell Incorporated | 3217 |
2 |
| GFM - GmbH | 32 |
2 |
| NHK Spring Co., Ltd. | 1806 |
2 |
| Zhongjuxin Ocean Engineering Equipment Co., Ltd | 12 |
2 |
| Advel UK Limited | 1 |
1 |
| AIDA Engineering, Ltd. | 134 |
1 |
| Bosch Rexroth AG | 188 |
1 |
| Huazhong University of Science and Technology | 1024 |
1 |
| Hunting Energy Services, Inc. | 18 |
1 |
| Japan Aviation Electronics Industry, Limited | 1688 |
1 |
| Jiansu Pacific Precision Forging Co., Ltd. | 1 |
1 |
| Jilin University | 263 |
1 |
| Lokring Technology, LLC | 32 |
1 |
| SMS Meer GmbH | 66 |
1 |
| Other owners | 4 |