- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/14 - Equipment for pressing the conveyor towards the working face
Patent holdings for IPC class E21C 35/14
Total number of patents in this class: 7
10-year publication summary
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0
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1
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0
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0
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1
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0
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0
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0
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| RAG Aktiengesellschaft | 33 |
3 |
| Caterpillar Global Mining Europe GmbH | 85 |
1 |
| Eickhoff Bergbautechnik GmbH | 6 |
1 |
| Joy Global Underground Mining LLC | 343 |
1 |
| Beijing Tianma Intelligent Control Technology Co., Ltd. | 18 |
1 |
| Other owners | 0 |