Preparation of metal salts or ammonium salts

Preparation of metal salts or ammonium salts · 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 codeC08F8/44
Official titlePreparation of metal salts or ammonium salts
Display labelPreparation of metal salts or ammonium salts
Total patents478

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
201545
201634
201746
201842
201942
202041
202158
202250
202335
202438
202537
202610

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 C08F8/44?
CPC C08F8/44 is the Cooperative Patent Classification code for “Preparation of metal salts or ammonium salts.”
How many patents are filed under CPC C08F8/44 (Preparation of metal salts or ammonium salts)?
Our database includes 478 publications tagged with this CPC code.
Is patent activity under CPC C08F8/44 growing?
Publication counts under this code: 38 in 2024 vs 37 in 2025 (latest complete years).