Bogie frame, bogie assembly and rail vehicle
US-11155282-B2 · Oct 26, 2021 · US
Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
Rail vehicles characterised by means for preventing derailing, e.g. by use of guide 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 | B61F9/00 |
| Official title | Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels |
| Display label | Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels |
| Total patents | 97 |
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 | 5 |
| 2016 | 10 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 14 |
| 2020 | 3 |
| 2021 | 17 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 10 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rail transport system
US-11155279-B2 · Oct 26, 2021 · US
Track system with a support member
US-2021261022-A1 · Aug 26, 2021 · US
Track system with a support member
US-2021265776-A1 · Aug 26, 2021 · US
Track system with a support member
US-2021262173-A1 · Aug 26, 2021 · US
Track system with a support member
US-2021261170-A1 · Aug 26, 2021 · US
Track system with a support member
US-2021262560-A1 · Aug 26, 2021 · US
Dead axle of rail vehicle, rail vehicle, and rail transportation system
US-2021237781-A1 · Aug 5, 2021 · US
Transaxle of rail vehicle, rail vehicle, and rail transportation system
US-2021221412-A1 · Jul 22, 2021 · US
Maintenance systems and methods for a wheel assembly of an amusement ride vehicle
US-2021170286-A1 · Jun 10, 2021 · US
Conveying system, method for controlling conveying system, and linear motor
US-2021155421-A1 · May 27, 2021 · US
Rail vehicle having guide device
US-10994753-B2 · May 4, 2021 · US
Bogie and guideway vehicle
US-2021107534-A1 · Apr 15, 2021 · US
Guide wheel shock absorbing device, carriage, and vehicle
US-2020339181-A1 · Oct 29, 2020 · US
Anti-seismic retaining system for a mass transit vehicle
US-10807617-B1 · Oct 20, 2020 · US
Abrasion inspection apparatus, abrasion inspection method, and program
US-2020011653-A1 · Jan 9, 2020 · US
Rail vehicle
US-2019344810-A1 · Nov 14, 2019 · US
Railway vehicle and derailment safety device thereof
US-10471975-B2 · Nov 12, 2019 · US
Abrasion inspection apparatus, abrasion inspection method, and program
US-10458776-B2 · Oct 29, 2019 · US
Conveying system and method for controlling conveying system
US-2019315580-A1 · Oct 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61F9/00?
- CPC B61F9/00 is the Cooperative Patent Classification code for “Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels.”
- How many patents are filed under CPC B61F9/00 (Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels)?
- Our database includes 97 publications tagged with this CPC code.
- Is patent activity under CPC B61F9/00 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).