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Special mine caps or special tops of pit-props for permitting step-by-step movement

Special mine caps or special tops of pit-props for permitting step-by-step movement · Cooperative Patent Classification (CPC)

Building, mining, and civil engineering structures.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeE21D23/06
Official titleSpecial mine caps or special tops of pit-props for permitting step-by-step movement
Display labelSpecial mine caps or special tops of pit-props for permitting step-by-step movement
Total patents10

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20171
20182
20191
20201
20211
20231
20241
20252

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.