Spiro-condensed systems

Spiro-condensed systems · 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 codeC07D487/20
Official titleSpiro-condensed systems
Display labelSpiro-condensed systems
Total patents175

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
201521
201620
201716
201817
201916
202014
202116
202213
202314
202415
20259
20264

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 C07D487/20?
CPC C07D487/20 is the Cooperative Patent Classification code for “Spiro-condensed systems.”
How many patents are filed under CPC C07D487/20 (Spiro-condensed systems)?
Our database includes 175 publications tagged with this CPC code.
Is patent activity under CPC C07D487/20 growing?
Publication counts under this code: 15 in 2024 vs 9 in 2025 (latest complete years).