with only hydrocarbon or substituted hydrocarbon radicals attached in position 2

with only hydrocarbon or substituted hydrocarbon radicals attached in position 2 · 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 codeC07D277/64
Official titlewith only hydrocarbon or substituted hydrocarbon radicals attached in position 2
Display labelwith only hydrocarbon or substituted hydrocarbon radicals attached in position 2
Total patents407

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
201559
201658
201763
201848
201934
202018
202123
202224
202328
202432
202518
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 C07D277/64?
CPC C07D277/64 is the Cooperative Patent Classification code for “with only hydrocarbon or substituted hydrocarbon radicals attached in position 2.”
How many patents are filed under CPC C07D277/64 (with only hydrocarbon or substituted hydrocarbon radicals attached in position 2)?
Our database includes 407 publications tagged with this CPC code.
Is patent activity under CPC C07D277/64 growing?
Publication counts under this code: 32 in 2024 vs 18 in 2025 (latest complete years).