Microfilters, e.g. for gas or fluids

Microfilters, e.g. for gas or fluids · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB81B2201/10
Official titleMicrofilters, e.g. for gas or fluids
Display labelMicrofilters, e.g. for gas or fluids
Total patents49

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
20153
20161
20174
20187
20197
20204
20216
202210
20232
20243
20252

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 B81B2201/10?
CPC B81B2201/10 is the Cooperative Patent Classification code for “Microfilters, e.g. for gas or fluids.”
How many patents are filed under CPC B81B2201/10 (Microfilters, e.g. for gas or fluids)?
Our database includes 49 publications tagged with this CPC code.
Is patent activity under CPC B81B2201/10 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).