having two phosphorus atoms as ring hetero atoms in the same ring

having two phosphorus atoms as ring hetero atoms in the same ring · 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 codeC07F9/6587
Official titlehaving two phosphorus atoms as ring hetero atoms in the same ring
Display labelhaving two phosphorus atoms as ring hetero atoms in the same ring
Total patents33

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
20153
20162
20172
20182
20198
20204
20217
20223
20231
20251

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 C07F9/6587?
CPC C07F9/6587 is the Cooperative Patent Classification code for “having two phosphorus atoms as ring hetero atoms in the same ring.”
How many patents are filed under CPC C07F9/6587 (having two phosphorus atoms as ring hetero atoms in the same ring)?
Our database includes 33 publications tagged with this CPC code.
Is patent activity under CPC C07F9/6587 growing?
Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).