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Devices for retaining foreign matter, e.g. sand

Devices for retaining foreign matter, e.g. sand · 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 codeE03B9/16
Official titleDevices for retaining foreign matter, e.g. sand
Display labelDevices for retaining foreign matter, e.g. sand
Total patents3

Filing trend

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

Filing activity appears stable based on the most recent years.

Patents filed per year
YearPatents
20161
20171
20191

Representative patents

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