containing ester or ether groups directly attached to the nucleus

containing ester or ether groups directly attached to the nucleus · 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 codeC11D1/24
Official titlecontaining ester or ether groups directly attached to the nucleus
Display labelcontaining ester or ether groups directly attached to the nucleus
Total patents140

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
20155
20166
20176
201837
201922
202016
202110
202211
202310
20245
20258
20264

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 C11D1/24?
CPC C11D1/24 is the Cooperative Patent Classification code for “containing ester or ether groups directly attached to the nucleus.”
How many patents are filed under CPC C11D1/24 (containing ester or ether groups directly attached to the nucleus)?
Our database includes 140 publications tagged with this CPC code.
Is patent activity under CPC C11D1/24 growing?
Publication counts under this code: 5 in 2024 vs 8 in 2025 (latest complete years).