- All sections
- E - Fixed constructions
- E02D - Foundationsexcavationsembankmentsunderground or underwater structures
- E02D 3/115 - Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electrochemical means by freezing
Patent holdings for IPC class E02D 3/115
Total number of patents in this class: 28
10-year publication summary
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3
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4
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4
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2
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2
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1
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2
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0
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1
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1
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