with vanadium, niobium or tantalum

with vanadium, niobium or tantalum · 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 codeC01B21/0617
Official title{with vanadium, niobium or tantalum}
Display labelwith vanadium, niobium or tantalum
Total patents57

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
20156
20165
20174
20186
20197
20205
20216
20226
20232
20245
20255

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 C01B21/0617?
CPC C01B21/0617 is the Cooperative Patent Classification code for “with vanadium, niobium or tantalum.”
How many patents are filed under CPC C01B21/0617 (with vanadium, niobium or tantalum)?
Our database includes 57 publications tagged with this CPC code.
Is patent activity under CPC C01B21/0617 growing?
Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).