oxide or hydroxide being the only anion

oxide or hydroxide being the only anion · 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 codeC01F17/206
Official titleoxide or hydroxide being the only anion
Display labeloxide or hydroxide being the only anion
Total patents130

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
20156
20165
20179
20188
201917
202031
202121
202212
202310
20249
20251
20261

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 C01F17/206?
CPC C01F17/206 is the Cooperative Patent Classification code for “oxide or hydroxide being the only anion.”
How many patents are filed under CPC C01F17/206 (oxide or hydroxide being the only anion)?
Our database includes 130 publications tagged with this CPC code.
Is patent activity under CPC C01F17/206 growing?
Publication counts under this code: 9 in 2024 vs 1 in 2025 (latest complete years).