Phosphates of ammonium or of the alkali or alkaline earth metals

Phosphates of ammonium or of the alkali or alkaline earth metals · 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 codeC04B12/025
Official title{Phosphates of ammonium or of the alkali or alkaline earth metals}
Display labelPhosphates of ammonium or of the alkali or alkaline earth metals
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
20199
20205
20211
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 C04B12/025?
CPC C04B12/025 is the Cooperative Patent Classification code for “Phosphates of ammonium or of the alkali or alkaline earth metals.”
How many patents are filed under CPC C04B12/025 (Phosphates of ammonium or of the alkali or alkaline earth metals)?
Our database includes 26 publications tagged with this CPC code.
Is patent activity under CPC C04B12/025 growing?
Publication counts under this code: 1 in 2021 vs 1 in 2025 (latest complete years).