- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 29/00 - Propulsion of machines for slitting or completely freeing the mineral from the seam
Patent holdings for IPC class E21C 29/00
Total number of patents in this class: 10
10-year publication summary
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0
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0
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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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1
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UGM ADDCAR Systems, LLC | 2 |
2 |
| RAG Aktiengesellschaft | 29 |
1 |
| Wesco Distribution, Inc. | 178 |
1 |
| Joy Global Underground Mining LLC | 346 |
1 |
| Orica International Pte Ltd | 201 |
1 |
| Waratah Engineering Pty Ltd | 4 |
1 |
| Eagle Highwall Mining Systems, LLC | 9 |
1 |
| Bendtech Group Pty Ltd | 8 |
1 |
| Eagle Highwall Mining Systems, LLC | 1 |
1 |
| Other owners | 0 |