- All sections
- E - Fixed constructions
- E21F - Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels
- E21F 5/14 - Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
Patent holdings for IPC class E21F 5/14
Total number of patents in this class: 7
10-year publication summary
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1
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1
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1
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0
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1
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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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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rusmar Incorporated | 2 |
1 |
| Saltus Poles CC | 2 |
1 |
| Tyco Fire & Security GmbH | 3303 |
1 |
| Lepl G. Tsulukidze Mining Institute | 1 |
1 |
| Lepl G. Tsulukidze Mining Institute | 1 |
1 |
| Dr. Klaus Schulte GmbH Chemisch Technische Fabrikation | 3 |
1 |
| Terravent (Pty) Limited | 1 |
1 |
| Other owners | 0 |