Aggregate, e.g. crushed stone, sand, gravel or cement

Aggregate, e.g. crushed stone, sand, gravel or cement · 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 codeC08L2555/52
Official titleAggregate, e.g. crushed stone, sand, gravel or cement
Display labelAggregate, e.g. crushed stone, sand, gravel or cement
Total patents124

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
201511
201610
20179
201813
201915
20208
202110
20227
202311
202416
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 C08L2555/52?
CPC C08L2555/52 is the Cooperative Patent Classification code for “Aggregate, e.g. crushed stone, sand, gravel or cement.”
How many patents are filed under CPC C08L2555/52 (Aggregate, e.g. crushed stone, sand, gravel or cement)?
Our database includes 124 publications tagged with this CPC code.
Is patent activity under CPC C08L2555/52 growing?
Publication counts under this code: 16 in 2024 vs 12 in 2025 (latest complete years).