Carbon, e.g. diamond or graphene

Carbon, e.g. diamond or graphene · 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 codeC25B11/043
Official titleCarbon, e.g. diamond or graphene
Display labelCarbon, e.g. diamond or graphene
Total patents305

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
201511
201617
201719
201824
201925
202034
202130
202231
202337
202428
202541
20268

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 C25B11/043?
CPC C25B11/043 is the Cooperative Patent Classification code for “Carbon, e.g. diamond or graphene.”
How many patents are filed under CPC C25B11/043 (Carbon, e.g. diamond or graphene)?
Our database includes 305 publications tagged with this CPC code.
Is patent activity under CPC C25B11/043 growing?
Publication counts under this code: 28 in 2024 vs 41 in 2025 (latest complete years).