containing further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin

containing further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin · Cooperative Patent Classification (CPC)

Agriculture, food, personal care, health, and life sciences.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeA61K31/431
Official titlecontaining further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin
Display labelcontaining further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin
Total patents231

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
201511
201623
201723
201834
201919
202027
202123
202220
202319
202417
202513
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 A61K31/431?
CPC A61K31/431 is the Cooperative Patent Classification code for “containing further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin.”
How many patents are filed under CPC A61K31/431 (containing further heterocyclic rings, e.g. ticarcillin, azlocillin, oxacillin)?
Our database includes 231 publications tagged with this CPC code.
Is patent activity under CPC A61K31/431 growing?
Publication counts under this code: 17 in 2024 vs 13 in 2025 (latest complete years).