Rubber bushing for railroad trucks
US-12454292-B2 · Oct 28, 2025 · US
for locomotives · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B61F15/04 |
| Official title | for locomotives |
| Display label | for locomotives |
| Total patents | 4 |
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12454292-B2 · Oct 28, 2025 · US
US-12084097-B2 · Sep 10, 2024 · US
US-2023001964-A1 · Jan 5, 2023 · US
US-2021284204-A1 · Sep 16, 2021 · US