Sulfates of Ca from gases containing sulfur oxides

Sulfates of Ca from gases containing sulfur oxides · 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 codeC01F11/464
Official title{Sulfates of Ca from gases containing sulfur oxides}
Display labelSulfates of Ca from gases containing sulfur oxides
Total patents28

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
20152
20164
20172
20184
20193
20203
20213
20225
20242

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 C01F11/464?
CPC C01F11/464 is the Cooperative Patent Classification code for “Sulfates of Ca from gases containing sulfur oxides.”
How many patents are filed under CPC C01F11/464 (Sulfates of Ca from gases containing sulfur oxides)?
Our database includes 28 publications tagged with this CPC code.
Is patent activity under CPC C01F11/464 growing?
Publication counts under this code: 5 in 2022 vs 2 in 2024 (latest complete years).