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Removal of organic impurities

Removal of organic impurities · 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 codeC01B17/905
Official title{Removal of organic impurities}
Display labelRemoval of organic impurities
Total patents11

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20151
20161
20184
20192
20201
20211
20231

Representative patents

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