with only hydrogen atoms attached to the ring nitrogen atom

with only hydrogen atoms attached to the ring nitrogen 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 codeC07D211/12
Official titlewith only hydrogen atoms attached to the ring nitrogen atom
Display labelwith only hydrogen atoms attached to the ring nitrogen atom
Total patents31

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
20157
20169
20173
20183
20193
20204
20212

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 C07D211/12?
CPC C07D211/12 is the Cooperative Patent Classification code for “with only hydrogen atoms attached to the ring nitrogen atom.”
How many patents are filed under CPC C07D211/12 (with only hydrogen atoms attached to the ring nitrogen atom)?
Our database includes 31 publications tagged with this CPC code.
Is patent activity under CPC C07D211/12 growing?
Publication counts under this code: 4 in 2020 vs 2 in 2021 (latest complete years).