obtained from carbonaceous particles with or without other non-organic components

obtained from carbonaceous particles with or without other non-organic components · 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 codeC04B35/528
Official titleobtained from carbonaceous particles with or without other non-organic components
Display labelobtained from carbonaceous particles with or without other non-organic components
Total patents250

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
201519
201614
201728
201837
201933
202023
202117
202223
202317
202424
202512
20263

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 C04B35/528?
CPC C04B35/528 is the Cooperative Patent Classification code for “obtained from carbonaceous particles with or without other non-organic components.”
How many patents are filed under CPC C04B35/528 (obtained from carbonaceous particles with or without other non-organic components)?
Our database includes 250 publications tagged with this CPC code.
Is patent activity under CPC C04B35/528 growing?
Publication counts under this code: 24 in 2024 vs 12 in 2025 (latest complete years).