Railroad vehicle
US-2022281492-A1 · Sep 8, 2022 · US
Bolster supports or mountings (side bearings B61F5/14)
Bolster supports or mountings (side bearings B61F5/14) · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B61F5/04 |
| Official title | Bolster supports or mountings (side bearings B61F5/14) |
| Display label | Bolster supports or mountings (side bearings B61F5/14) |
| Total patents | 69 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 11 |
| 2020 | 10 |
| 2021 | 11 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stabilizing transom
US-11345373-B2 · May 31, 2022 · US
Railcar bogie including protective film and protective film-equipped plate spring
US-11299184-B2 · Apr 12, 2022 · US
Bogie, rail vehicle having same, and rail transport system
US-2022048541-A1 · Feb 17, 2022 · US
Spring arrangement for a rail vehicle
US-11198456-B2 · Dec 14, 2021 · US
Bogie frame, bogie assembly and rail vehicle
US-11155282-B2 · Oct 26, 2021 · US
Bogie, rail vehicle having same, and rail transport system
US-11155278-B2 · Oct 26, 2021 · US
Suspension system, bogie assembly with same, and rail vehicle
US-2021309267-A1 · Oct 7, 2021 · US
End guide system and method for a truck assembly of a rail vehicle
US-2021300444-A1 · Sep 30, 2021 · US
Wheel set intermediate frame for a rail vehicle
US-2021284204-A1 · Sep 16, 2021 · US
System for a rocker assembly
US-2021253143-A1 · Aug 19, 2021 · US
Vehicle suspension system
US-11091178-B2 · Aug 17, 2021 · US
Railcar truck bolster
US-11072352-B2 · Jul 27, 2021 · US
Bogie Frame With Asymmetrical Support Beam and Bogie of a Rail Vehicle
US-2021197871-A1 · Jul 1, 2021 · US
Railroad car truck with warp restraints
US-11027755-B2 · Jun 8, 2021 · US
Plate spring unit and railcar bogie
US-10723371-B2 · Jul 28, 2020 · US
Stabilizing transom
US-2020189626-A1 · Jun 18, 2020 · US
Axle box suspension of railcar bogie
US-10676112-B2 · Jun 9, 2020 · US
Railway truck bolster center bowl liner
US-10654495-B2 · May 19, 2020 · US
Bolster beam of railcar bogie
US-2020108844-A1 · Apr 9, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61F5/04?
- CPC B61F5/04 is the Cooperative Patent Classification code for “Bolster supports or mountings (side bearings B61F5/14).”
- How many patents are filed under CPC B61F5/04 (Bolster supports or mountings (side bearings B61F5/14))?
- Our database includes 69 publications tagged with this CPC code.
- Is patent activity under CPC B61F5/04 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).