Carboxylic acids; Salts, anhydrides or esters thereof

Carboxylic acids; Salts, anhydrides or esters thereof · 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 codeC04B24/04
Official titleCarboxylic acids; Salts, anhydrides or esters thereof
Display labelCarboxylic acids; Salts, anhydrides or esters thereof
Total patents262

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
201517
201617
201726
201826
201945
202040
202127
202220
202317
202413
202512
20262

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 C04B24/04?
CPC C04B24/04 is the Cooperative Patent Classification code for “Carboxylic acids; Salts, anhydrides or esters thereof.”
How many patents are filed under CPC C04B24/04 (Carboxylic acids; Salts, anhydrides or esters thereof)?
Our database includes 262 publications tagged with this CPC code.
Is patent activity under CPC C04B24/04 growing?
Publication counts under this code: 13 in 2024 vs 12 in 2025 (latest complete years).