of metering of detergents or additives

of metering of detergents or additives · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD06F33/57
Official titleof metering of detergents or additives
Display labelof metering of detergents or additives
Total patents75

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
20165
20172
20187
20194
202012
202112
20227
202314
20248
20254

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 D06F33/57?
CPC D06F33/57 is the Cooperative Patent Classification code for “of metering of detergents or additives.”
How many patents are filed under CPC D06F33/57 (of metering of detergents or additives)?
Our database includes 75 publications tagged with this CPC code.
Is patent activity under CPC D06F33/57 growing?
Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).