Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange

Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange · 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 codeC01G3/003
Official title{Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange}
Display labelPreparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
Total patents33

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20171
20181
20202
20214
20223
20238
20245
20257
20262

Representative patents

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

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC C01G3/003?
CPC C01G3/003 is the Cooperative Patent Classification code for “Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange.”
How many patents are filed under CPC C01G3/003 (Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange)?
Our database includes 33 publications tagged with this CPC code.
Is patent activity under CPC C01G3/003 growing?
Publication counts under this code: 5 in 2024 vs 7 in 2025 (latest complete years).