Carboxylic acids; Esters thereof with monohydroxyl compounds

Carboxylic acids; Esters thereof with monohydroxyl compounds · 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 codeC08G18/34
Official titleCarboxylic acids; Esters thereof with monohydroxyl compounds
Display labelCarboxylic acids; Esters thereof with monohydroxyl compounds
Total patents139

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
201616
201715
201813
201911
202011
202117
202213
20237
202412
20256
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 C08G18/34?
CPC C08G18/34 is the Cooperative Patent Classification code for “Carboxylic acids; Esters thereof with monohydroxyl compounds.”
How many patents are filed under CPC C08G18/34 (Carboxylic acids; Esters thereof with monohydroxyl compounds)?
Our database includes 139 publications tagged with this CPC code.
Is patent activity under CPC C08G18/34 growing?
Publication counts under this code: 12 in 2024 vs 6 in 2025 (latest complete years).