obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(C04B24/243 takes precedence)}

obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(C04B24/243 takes precedence)} · 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 codeC04B24/28
Official titleobtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(C04B24/243 takes precedence)}
Display labelobtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(C04B24/243 takes precedence)}
Total patents39

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
20152
20164
20176
20185
20192
20204
20217
20225
20231
20242
20251

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 C04B24/28?
CPC C04B24/28 is the Cooperative Patent Classification code for “obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(C04B24/243 takes precedence)}.”
How many patents are filed under CPC C04B24/28 (obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds {(C04B24/243 takes precedence)})?
Our database includes 39 publications tagged with this CPC code.
Is patent activity under CPC C04B24/28 growing?
Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).