Method of forming low-carbon, high toughness, steel plates for railroad tank cars
US-2025369080-A1 · Dec 4, 2025 · US
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Tank wagons for carrying fluent materials
Tank wagons for carrying fluent materials · 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 | B61D5/00 |
| Official title | Tank wagons for carrying fluent materials |
| Display label | Tank wagons for carrying fluent materials |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2018 | 2 |
| 2019 | 1 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Treadplate for a floor of a gangway and gangway
US-12485935-B2 · Dec 2, 2025 · US
Composite fittings plate
US-2025326409-A1 · Oct 23, 2025 · US
Railroad tank cars formed of low-carbon, high toughness, steel plates
US-12421585-B2 · Sep 23, 2025 · US
Tank car bottom outlet valve operating assembly
US-2025122948-A1 · Apr 17, 2025 · US
Rail vehicle car having a tank
US-2024043047-A1 · Feb 8, 2024 · US
Railroad tank car fittings
US-2023347946-A1 · Nov 2, 2023 · US
Railroad tank car fittings
US-11608096-B2 · Mar 21, 2023 · US
On-track work- or rescue vehicle
US-11453419-B2 · Sep 27, 2022 · US
Treadplate for a floor of a gangway and gangway
US-2022135089-A1 · May 5, 2022 · US
Railroad tank cars formed of low-carbon, high toughness, steel plates
US-2022025496-A1 · Jan 27, 2022 · US
On-Track Work- or Rescue Vehicle
US-2019389492-A1 · Dec 26, 2019 · US
Railroad tank car fittings
US-2018297618-A1 · Oct 18, 2018 · US
Transportation means with water supply device
US-9873440-B2 · Jan 23, 2018 · US
Tank drainage device
US-2015267833-A1 · Sep 24, 2015 · US
Fuel pressure actuated coupling for train consist
US-9108644-B2 · Aug 18, 2015 · US
Fuel distribution system for multi-locomotive consist
US-9073556-B2 · Jul 7, 2015 · US
Transportation Means with Water Supply Device
US-2015166077-A1 · Jun 18, 2015 · US
Protective Structure for Top of Tank Car
US-2015135986-A1 · May 21, 2015 · US