- All sections
- B - Performing operationstransporting
- B61K - Auxiliary equipment specially adapted for railways, not otherwise provided for
- B61K 7/14 - Sand or like tracks
Patent holdings for IPC class B61K 7/14
Total number of patents in this class: 1
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| China Railway Baoji Bridge Group Co., Ltd | 12 |
1 |
| Other owners | 0 |