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Waste material contaminated by heavy metals

Waste material contaminated by heavy metals · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC04B18/0472
Official title{Waste material contaminated by heavy metals}
Display labelWaste material contaminated by heavy metals
Total patents12

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20151
20161
20193
20202
20211
20221
20242
20251

Representative patents

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