Carbon

Carbon · 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 codeC04B35/62839
Official title{Carbon}
Display labelCarbon
Total patents113

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
20155
20169
20178
201818
20198
202012
20217
202212
202313
20248
20259
20264

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 C04B35/62839?
CPC C04B35/62839 is the Cooperative Patent Classification code for “Carbon.”
How many patents are filed under CPC C04B35/62839 (Carbon)?
Our database includes 113 publications tagged with this CPC code.
Is patent activity under CPC C04B35/62839 growing?
Publication counts under this code: 8 in 2024 vs 9 in 2025 (latest complete years).