in which the condensed system contains two hetero rings

in which the condensed system contains two hetero rings · 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 codeC07D498/02
Official titlein which the condensed system contains two hetero rings
Display labelin which the condensed system contains two hetero rings
Total patents26

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
20152
20164
20171
20183
20194
20203
20225
20231
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 C07D498/02?
CPC C07D498/02 is the Cooperative Patent Classification code for “in which the condensed system contains two hetero rings.”
How many patents are filed under CPC C07D498/02 (in which the condensed system contains two hetero rings)?
Our database includes 26 publications tagged with this CPC code.
Is patent activity under CPC C07D498/02 growing?
Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).