Carbon

Carbon · 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 codeB32B2313/04
Official titleCarbon
Display labelCarbon
Total patents515

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
201545
201651
201755
201864
201949
202050
202147
202239
202337
202437
202536
20265

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 B32B2313/04?
CPC B32B2313/04 is the Cooperative Patent Classification code for “Carbon.”
How many patents are filed under CPC B32B2313/04 (Carbon)?
Our database includes 515 publications tagged with this CPC code.
Is patent activity under CPC B32B2313/04 growing?
Publication counts under this code: 37 in 2024 vs 36 in 2025 (latest complete years).