E21F 13/061
Chutes and braking conveyors for average and steep slopes, adapted for mining
Official title: {Chutes and braking conveyors for average and steep slopes, adapted for mining purposes (chutes in general B65G11/00)}
E21F13/061 (Chutes and braking conveyors for average and steep slopes, adapted for mining) appears on 6 US grants and 9 published applications in this corpus.
Search patents in E21F- Granted patents
- 6
- Published applications
- 9
- Assignees
- 10
- Inventors
- 43
- Latest grant
- 10 Sep 2024
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| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
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| 2014 | 1 | 0 |
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| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
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| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
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