Fullerenes

Fullerenes · 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 codeC08K3/045
Official title{Fullerenes}
Display labelFullerenes
Total patents296

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
201538
201629
201744
201846
201932
202030
202123
202223
202313
202412
20256

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 C08K3/045?
CPC C08K3/045 is the Cooperative Patent Classification code for “Fullerenes.”
How many patents are filed under CPC C08K3/045 (Fullerenes)?
Our database includes 296 publications tagged with this CPC code.
Is patent activity under CPC C08K3/045 growing?
Publication counts under this code: 12 in 2024 vs 6 in 2025 (latest complete years).