Stabilizing transom
US-11345373-B2 · May 31, 2022 · US
with more than one axle
with more than one axle · 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 | B61F3/02 |
| Official title | with more than one axle |
| Display label | with more than one axle |
| Total patents | 68 |
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 | 8 |
| 2017 | 7 |
| 2018 | 14 |
| 2019 | 10 |
| 2020 | 9 |
| 2021 | 5 |
| 2022 | 8 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rail road car truck bolster
US-2022153322-A1 · May 19, 2022 · US
Railroad car truck damper wedge fittings
US-2022144321-A1 · May 12, 2022 · US
Railcar bogie including protective film and protective film-equipped plate spring
US-11299184-B2 · Apr 12, 2022 · US
Railway truck assembly having I-beam components
US-11225272-B2 · Jan 18, 2022 · US
Railcar axle box and method of producing the same
US-11136051-B2 · Oct 5, 2021 · US
End guide system and method for a truck assembly of a rail vehicle
US-2021300444-A1 · Sep 30, 2021 · US
Method of assembling railcar bogie, measurement jig, and railcar bogie
US-11104360-B2 · Aug 31, 2021 · US
Axle box suspension of railcar bogie and method of producing the same
US-10906565-B2 · Feb 2, 2021 · US
Running gear provided with a passive hydraulic wheel set steering system for a rail vehicle
US-10906566-B2 · Feb 2, 2021 · US
Bogie for a railway vehicle comprising a three discs brake system arranged between axle boxes
US-10859132-B2 · Dec 8, 2020 · US
Bogie with a motor mount for a linear induction motor
US-10723369-B2 · Jul 28, 2020 · US
Plate spring unit and railcar bogie
US-10723371-B2 · Jul 28, 2020 · US
Stabilizing transom
US-2020189626-A1 · Jun 18, 2020 · US
Railway car truck friction shoe
US-10597051-B2 · Mar 24, 2020 · US
Railway car truck friction shoe
US-10589759-B2 · Mar 17, 2020 · US
Railcar bogie including protective film and protective film-equipped plate spring
US-2020079402-A1 · Mar 12, 2020 · US
Railway truck assembly having coreless i-beam bolster
US-2020017128-A1 · Jan 16, 2020 · US
Railway truck assembly having i-beam components
US-2020017127-A1 · Jan 16, 2020 · US
Bogie of a rail vehicle with at least two wheelsets mounted in axleboxes and at least one transverse member
US-2019322296-A1 · Oct 24, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61F3/02?
- CPC B61F3/02 is the Cooperative Patent Classification code for “with more than one axle.”
- How many patents are filed under CPC B61F3/02 (with more than one axle)?
- Our database includes 68 publications tagged with this CPC code.
- Is patent activity under CPC B61F3/02 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).