Underframes (making railway vehicle underframes by forging or pressing B21K7/12)

Underframes (making railway vehicle underframes by forging or pressing B21K7/12) · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB61F1/00
Official titleUnderframes (making railway vehicle underframes by forging or pressing B21K7/12)
Display labelUnderframes (making railway vehicle underframes by forging or pressing B21K7/12)
Total patents54

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
20164
20173
20183
201910
20205
202112
20224
20231
20244

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 B61F1/00?
CPC B61F1/00 is the Cooperative Patent Classification code for “Underframes (making railway vehicle underframes by forging or pressing B21K7/12).”
How many patents are filed under CPC B61F1/00 (Underframes (making railway vehicle underframes by forging or pressing B21K7/12))?
Our database includes 54 publications tagged with this CPC code.
Is patent activity under CPC B61F1/00 growing?
Publication counts under this code: 1 in 2023 vs 4 in 2024 (latest complete years).