Oxides or hydroxides (production of lime C04B2/00)

Oxides or hydroxides (production of lime C04B2/00) · 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 codeC01F11/02
Official titleOxides or hydroxides (production of lime C04B2/00)
Display labelOxides or hydroxides (production of lime C04B2/00)
Total patents148

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
20153
20164
201718
201818
201920
202017
202121
202212
202316
20249
20258
20262

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 C01F11/02?
CPC C01F11/02 is the Cooperative Patent Classification code for “Oxides or hydroxides (production of lime C04B2/00).”
How many patents are filed under CPC C01F11/02 (Oxides or hydroxides (production of lime C04B2/00))?
Our database includes 148 publications tagged with this CPC code.
Is patent activity under CPC C01F11/02 growing?
Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).