Filters

Filters · 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 codeC12M37/02
Official title{Filters}
Display labelFilters
Total patents198

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20153
201615
20179
201812
201920
202024
202125
202225
202321
202430
202512
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 C12M37/02?
CPC C12M37/02 is the Cooperative Patent Classification code for “Filters.”
How many patents are filed under CPC C12M37/02 (Filters)?
Our database includes 198 publications tagged with this CPC code.
Is patent activity under CPC C12M37/02 growing?
Publication counts under this code: 30 in 2024 vs 12 in 2025 (latest complete years).