Bogie structure for mountain railway car
US-2020398873-A1 · Dec 24, 2020 · US
in bogies
in bogies · 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 | B61C9/50 |
| Official title | in bogies |
| Display label | in bogies |
| Total patents | 99 |
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 | 6 |
| 2016 | 10 |
| 2017 | 10 |
| 2018 | 10 |
| 2019 | 15 |
| 2020 | 10 |
| 2021 | 10 |
| 2022 | 12 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bogie of a rail vehicle
US-2020398871-A1 · Dec 24, 2020 · US
Track maintenance machine
US-10730532-B2 · Aug 4, 2020 · US
Monorail vehicle with interior shells arrangement
US-10717449-B2 · Jul 21, 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
Chassis for Rail Vehicle
US-2020130712-A1 · Apr 30, 2020 · US
Integrated Motor-Gear Box Wheel Hub Drive
US-2020122747-A1 · Apr 23, 2020 · US
Electric machine with improved dissipation of waste heat
US-2019386538-A1 · Dec 19, 2019 · US
Thread-reinforced joint device and coupling device for a vehicle drive
US-2019345985-A1 · Nov 14, 2019 · US
Bogie, rail vehicle having same, and rail transport system
US-2019300023-A1 · Oct 3, 2019 · US
Rail transport system
US-2019300025-A1 · Oct 3, 2019 · US
Transmission for the powertrain of a rail vehicle
US-10428903-B2 · Oct 1, 2019 · US
Rail transport system
US-2019283783-A1 · Sep 19, 2019 · US
Rail transport system
US-2019276052-A1 · Sep 12, 2019 · US
Rail vehicle
US-2019276053-A1 · Sep 12, 2019 · US
Rail transport system
US-2019270462-A1 · Sep 5, 2019 · US
Thread-reinforced joint device and coupling device for a vehicle drive
US-10400828-B2 · Sep 3, 2019 · US
Bogie assembly and straddle-type monorail vehicle having same
US-2019210620-A1 · Jul 11, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61C9/50?
- CPC B61C9/50 is the Cooperative Patent Classification code for “in bogies.”
- How many patents are filed under CPC B61C9/50 (in bogies)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC B61C9/50 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).