Oxides; Hydroxides

Oxides; Hydroxides · 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 codeC01G43/01
Official titleOxides; Hydroxides
Display labelOxides; Hydroxides
Total patents29

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
20151
20164
20175
20182
20191
20202
20213
20223
20236
20252

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 C01G43/01?
CPC C01G43/01 is the Cooperative Patent Classification code for “Oxides; Hydroxides.”
How many patents are filed under CPC C01G43/01 (Oxides; Hydroxides)?
Our database includes 29 publications tagged with this CPC code.
Is patent activity under CPC C01G43/01 growing?
Publication counts under this code: 6 in 2023 vs 2 in 2025 (latest complete years).