each of the hetero rings containing nitrogen as ring hetero atom

each of the hetero rings containing nitrogen as ring hetero atom · 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 codeC07F9/65583
Official title{each of the hetero rings containing nitrogen as ring hetero atom}
Display labeleach of the hetero rings containing nitrogen as ring hetero atom
Total patents1,065

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
2015117
201689
2017111
2018116
2019122
202099
202178
202285
202390
202474
202569
202615

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 C07F9/65583?
CPC C07F9/65583 is the Cooperative Patent Classification code for “each of the hetero rings containing nitrogen as ring hetero atom.”
How many patents are filed under CPC C07F9/65583 (each of the hetero rings containing nitrogen as ring hetero atom)?
Our database includes 1,065 publications tagged with this CPC code.
Is patent activity under CPC C07F9/65583 growing?
Publication counts under this code: 74 in 2024 vs 69 in 2025 (latest complete years).