Sulfur atoms

Sulfur 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 codeC07D235/28
Official titleSulfur atoms
Display labelSulfur atoms
Total patents92

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
201512
20169
20178
201811
201911
202013
20217
20227
20231
20248
20254
20261

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 C07D235/28?
CPC C07D235/28 is the Cooperative Patent Classification code for “Sulfur atoms.”
How many patents are filed under CPC C07D235/28 (Sulfur atoms)?
Our database includes 92 publications tagged with this CPC code.
Is patent activity under CPC C07D235/28 growing?
Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).