characterised by carbonisation or activation of carbon

characterised by carbonisation or activation of carbon · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH01G11/34
Official titlecharacterised by carbonisation or activation of carbon
Display labelcharacterised by carbonisation or activation of carbon
Total patents625

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
201546
201666
201787
201860
201977
202060
202136
202230
202351
202454
202550
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 H01G11/34?
CPC H01G11/34 is the Cooperative Patent Classification code for “characterised by carbonisation or activation of carbon.”
How many patents are filed under CPC H01G11/34 (characterised by carbonisation or activation of carbon)?
Our database includes 625 publications tagged with this CPC code.
Is patent activity under CPC H01G11/34 growing?
Publication counts under this code: 54 in 2024 vs 50 in 2025 (latest complete years).