Phosphates, including polyphosphates

Phosphates, including polyphosphates · 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 codeC11D3/06
Official titlePhosphates, including polyphosphates
Display labelPhosphates, including polyphosphates
Total patents157

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
201518
201615
201718
201820
201911
202015
20219
202214
202311
202418
20257
20261

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 C11D3/06?
CPC C11D3/06 is the Cooperative Patent Classification code for “Phosphates, including polyphosphates.”
How many patents are filed under CPC C11D3/06 (Phosphates, including polyphosphates)?
Our database includes 157 publications tagged with this CPC code.
Is patent activity under CPC C11D3/06 growing?
Publication counts under this code: 18 in 2024 vs 7 in 2025 (latest complete years).