Esters with hydroxyaryl compounds

Esters with hydroxyaryl 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 codeC07F9/4084
Official title{Esters with hydroxyaryl compounds}
Display labelEsters with hydroxyaryl compounds
Total patents49

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
20154
20161
20173
201811
20199
20208
20215
20222
20231
20243
20252

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 C07F9/4084?
CPC C07F9/4084 is the Cooperative Patent Classification code for “Esters with hydroxyaryl compounds.”
How many patents are filed under CPC C07F9/4084 (Esters with hydroxyaryl compounds)?
Our database includes 49 publications tagged with this CPC code.
Is patent activity under CPC C07F9/4084 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).