Partial closure plates for hopper cars
US-2025340226-A1 · Nov 6, 2025 · US
Interior walls, e.g. separation walls between compartments (B61D17/06, B61D17/08, B61D17/18 take precedence)
Interior walls, e.g. separation walls between compartments (B61D17/06, B61D17/08, B61D17/18 take precedence) · 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 | B61D17/048 |
| Official title | {Interior walls, e.g. separation walls between compartments (B61D17/06, B61D17/08, B61D17/18 take precedence)} |
| Display label | Interior walls, e.g. separation walls between compartments (B61D17/06, B61D17/08, B61D17/18 take precedence) |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rail vehicle for transporting passengers
US-12263871-B2 · Apr 1, 2025 · US
Asymmetric hopper cars
US-2025042446-A1 · Feb 6, 2025 · US
Rail vehicle provided with an end wall, a doorway, and footplate catchers
US-12179810-B2 · Dec 31, 2024 · US
Asymmetric hopper cars
US-12122431-B2 · Oct 22, 2024 · US
Double-leaf door device for a vehicle
US-11859425-B2 · Jan 2, 2024 · US
Hopper Railcar Composite Partition
US-2023322277-A1 · Oct 12, 2023 · US
Double-leaf door device for a vehicle
US-2023193675-A1 · Jun 22, 2023 · US
Hopper railcar composite partition
US-11679789-B2 · Jun 20, 2023 · US
Rail Vehicle Provided With an End Wall, a Doorway, and Footplate Catchers
US-2022017123-A1 · Jan 20, 2022 · US
Asymmetric hopper cars
US-2021362752-A1 · Nov 25, 2021 · US
Covered hopper car
US-11142225-B2 · Oct 12, 2021 · US
Rail vehicle for transporting passengers
US-2021213980-A1 · Jul 15, 2021 · US
Hopper Railcar Composite Partition
US-2021039686-A1 · Feb 11, 2021 · US
Covered hopper car
US-2020239039-A1 · Jul 30, 2020 · US
Carbody of railcar
US-10597048-B2 · Mar 24, 2020 · US
Covered hopper car with stiffened bulkheads
US-10562545-B2 · Feb 18, 2020 · US
Connecting element for attaching a component to a fiber composite structrue
US-2020001904-A1 · Jan 2, 2020 · US
Rail road hopper car
US-10214224-B2 · Feb 26, 2019 · US
Covered hopper car with stiffened bulkheads
US-2018127004-A1 · May 10, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B61D17/048?
- CPC B61D17/048 is the Cooperative Patent Classification code for “Interior walls, e.g. separation walls between compartments (B61D17/06, B61D17/08, B61D17/18 take precedence).”
- How many patents are filed under CPC B61D17/048 (Interior walls, e.g. separation walls between compartments (B61D17/06, B61D17/08, B61D17/18 take precedence))?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC B61D17/048 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).