containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn

containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn · 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 codeC03C2201/40
Official titlecontaining transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
Display labelcontaining transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
Total patents75

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20157
20166
20176
20185
201911
20209
20217
20227
202311
20242
20254

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 C03C2201/40?
CPC C03C2201/40 is the Cooperative Patent Classification code for “containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn.”
How many patents are filed under CPC C03C2201/40 (containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn)?
Our database includes 75 publications tagged with this CPC code.
Is patent activity under CPC C03C2201/40 growing?
Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).