Niobates; Vanadates; Tantalates

Niobates; Vanadates; Tantalates · 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 codeC30B29/30
Official titleNiobates; Vanadates; Tantalates
Display labelNiobates; Vanadates; Tantalates
Total patents174

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
201511
201611
20178
201819
201917
202018
202123
202216
202321
202415
202514
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 C30B29/30?
CPC C30B29/30 is the Cooperative Patent Classification code for “Niobates; Vanadates; Tantalates.”
How many patents are filed under CPC C30B29/30 (Niobates; Vanadates; Tantalates)?
Our database includes 174 publications tagged with this CPC code.
Is patent activity under CPC C30B29/30 growing?
Publication counts under this code: 15 in 2024 vs 14 in 2025 (latest complete years).