derived from heterocyclic compounds

derived from heterocyclic 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 codeC11D1/26
Official titlederived from heterocyclic compounds
Display labelderived from heterocyclic compounds
Total patents38

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
20153
20182
20195
20204
20214
20225
202310
20242
20251
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 C11D1/26?
CPC C11D1/26 is the Cooperative Patent Classification code for “derived from heterocyclic compounds.”
How many patents are filed under CPC C11D1/26 (derived from heterocyclic compounds)?
Our database includes 38 publications tagged with this CPC code.
Is patent activity under CPC C11D1/26 growing?
Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).