- All sections
- B - Performing operationstransporting
- B21K - Making forged or pressed metal products, e.g. horse-shoes, rivets, bolts or wheels
- B21K 7/00 - Making railway appurtenancesMaking vehicle parts
Patent holdings for IPC class B21K 7/00
Total number of patents in this class: 6
10-year publication summary
|
1
|
0
|
0
|
0
|
1
|
0
|
0
|
1
|
1
|
0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aubert & Duval | 111 |
1 |
| Kobe Steel, Ltd. | 890 |
1 |
| Latecoere | 199 |
1 |
| NHK Spring Co., Ltd. | 1933 |
1 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 163 |
1 |
| Jia Goang Enterprise Co., Ltd. | 1 |
1 |
| Other owners | 0 |