Rail transport system
US-11155279-B2 · Oct 26, 2021 · US
with driven axles or wheels
with driven axles or wheels · 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 | B61F3/04 |
| Official title | with driven axles or wheels |
| Display label | with driven axles or wheels |
| Total patents | 89 |
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 | 8 |
| 2016 | 10 |
| 2017 | 6 |
| 2018 | 8 |
| 2019 | 9 |
| 2020 | 10 |
| 2021 | 16 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wheel set intermediate frame for a rail vehicle
US-2021284204-A1 · Sep 16, 2021 · US
Transaxle of rail vehicle, rail vehicle, and rail transportation system
US-2021221412-A1 · Jul 22, 2021 · US
Double axle drive
US-11046337-B2 · Jun 29, 2021 · US
Sleeper transport vehicle
US-2021179150-A1 · Jun 17, 2021 · US
Railcar driving bogie
US-2021163048-A1 · Jun 3, 2021 · US
Running Gear for a Rail Vehicle
US-2021094591-A1 · Apr 1, 2021 · US
Railcar bogie frame
US-2021031814-A1 · Feb 4, 2021 · US
Trim Assembly for a Vehicle
US-2021024145-A1 · Jan 28, 2021 · US
Bogie structure for mountain railway car
US-2020398873-A1 · Dec 24, 2020 · US
Elastic bushing device of traction device and railcar bogie
US-2020385032-A1 · Dec 10, 2020 · US
Plug-in coupling for drives
US-2020269883-A1 · Aug 27, 2020 · US
Method for compensating for a loss of traction of a rail vehicle
US-2020239038-A1 · Jul 30, 2020 · US
Bogie with a motor mount for a linear induction motor
US-10723369-B2 · Jul 28, 2020 · US
"Locomotive Bogie Having an Anti-Pitching Geometry"
US-2020207381-A1 · Jul 2, 2020 · US
Railcar flexible gear coupling and railcar bogie including same
US-2020182344-A1 · Jun 11, 2020 · US
Thread-reinforced joint device and coupling device for a vehicle drive
US-10648513-B2 · May 12, 2020 · US
Locomotive suspension system
US-2020094857-A1 · Mar 26, 2020 · US
Drive system for a rail vehicle, rail vehicle having the drive system and methods for the forward movement of a rail vehicle
US-2020010096-A1 · Jan 9, 2020 · US
Thread-reinforced joint device and coupling device for a vehicle drive
US-2019345985-A1 · Nov 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61F3/04?
- CPC B61F3/04 is the Cooperative Patent Classification code for “with driven axles or wheels.”
- How many patents are filed under CPC B61F3/04 (with driven axles or wheels)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC B61F3/04 growing?
- Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).