the principal metal being a transition metal

the principal metal being a transition metal · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH10W20/4437
Official title{the principal metal being a transition metal}
Display labelthe principal metal being a transition metal
Total patents1,097

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
20158
201619
201782
2018135
2019156
2020175
2021133
2022123
2023101
202488
202564
202613

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 H10W20/4437?
CPC H10W20/4437 is the Cooperative Patent Classification code for “the principal metal being a transition metal.”
How many patents are filed under CPC H10W20/4437 (the principal metal being a transition metal)?
Our database includes 1,097 publications tagged with this CPC code.
Is patent activity under CPC H10W20/4437 growing?
Publication counts under this code: 88 in 2024 vs 64 in 2025 (latest complete years).