layered hydroxide-type, e.g. of the hydrotalcite-type

layered hydroxide-type, e.g. of the hydrotalcite-type · 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 codeC01P2002/22
Official titlelayered hydroxide-type, e.g. of the hydrotalcite-type
Display labellayered hydroxide-type, e.g. of the hydrotalcite-type
Total patents204

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
201518
201610
201713
201821
201921
202024
202123
202224
202312
202415
202520
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 C01P2002/22?
CPC C01P2002/22 is the Cooperative Patent Classification code for “layered hydroxide-type, e.g. of the hydrotalcite-type.”
How many patents are filed under CPC C01P2002/22 (layered hydroxide-type, e.g. of the hydrotalcite-type)?
Our database includes 204 publications tagged with this CPC code.
Is patent activity under CPC C01P2002/22 growing?
Publication counts under this code: 15 in 2024 vs 20 in 2025 (latest complete years).