Hydrogen atoms or radicals containing only hydrogen and carbon atoms

Hydrogen atoms or radicals containing only hydrogen and carbon atoms · 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 codeC07D333/08
Official titleHydrogen atoms or radicals containing only hydrogen and carbon atoms
Display labelHydrogen atoms or radicals containing only hydrogen and carbon atoms
Total patents82

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
201516
20166
20177
20187
20197
20205
202110
20227
20237
20246
20254

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 C07D333/08?
CPC C07D333/08 is the Cooperative Patent Classification code for “Hydrogen atoms or radicals containing only hydrogen and carbon atoms.”
How many patents are filed under CPC C07D333/08 (Hydrogen atoms or radicals containing only hydrogen and carbon atoms)?
Our database includes 82 publications tagged with this CPC code.
Is patent activity under CPC C07D333/08 growing?
Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).