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using adsorption agents, e.g. active carbon

using adsorption agents, e.g. active carbon · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	C13B20/12
Official title	using adsorption agents, e.g. active carbon
Display label	using adsorption agents, e.g. active carbon
Total patents	2

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

Filing activity appears stable based on the most recent years.

Patents filed per year
Year	Patents
2019	1
2022	1

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