Water-insoluble oxides

Water-insoluble 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 codeC11D7/20
Official titleWater-insoluble oxides
Display labelWater-insoluble oxides
Total patents84

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20155
20162
201710
20188
20194
20208
20219
20229
20236
202411
20259
20263

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 C11D7/20?
CPC C11D7/20 is the Cooperative Patent Classification code for “Water-insoluble oxides.”
How many patents are filed under CPC C11D7/20 (Water-insoluble oxides)?
Our database includes 84 publications tagged with this CPC code.
Is patent activity under CPC C11D7/20 growing?
Publication counts under this code: 11 in 2024 vs 9 in 2025 (latest complete years).