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Recovery of noble metals from waste materials

Recovery of noble metals from waste materials · 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 codeC22B11/021
Official title{Recovery of noble metals from waste materials}
Display labelRecovery of noble metals from waste materials
Total patents21

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20152
20161
20171
20182
20192
20204
20212
20221
20232
20242
20252

Representative patents

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