Hopper railroad car having top hatch cover assembly
US-12286141-B2 · Apr 29, 2025 · US
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Hatches in roofs
Hatches in roofs · 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 | B61D17/16 |
| Official title | Hatches in roofs |
| Display label | Hatches in roofs |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cover assemblies for railroad cars
US-12202529-B2 · Jan 21, 2025 · US
Hopper railroad car having top hatch cover assembly
US-2023322276-A1 · Oct 12, 2023 · US
Gasket for hatch cover assembly of a rail car
US-11760393-B2 · Sep 19, 2023 · US
Hopper railroad car having top hatch cover assembly
US-11713061-B2 · Aug 1, 2023 · US
Cover assemblies for railroad cars
US-2023202535-A1 · Jun 29, 2023 · US
Hopper railroad car having top hatch cover assembly
US-2023113865-A1 · Apr 13, 2023 · US
Railroad car vented hatch cover assembly including a replaceable combined vented hatch cover protector and gasket
US-11548536-B1 · Jan 10, 2023 · US
Hopper railroad car having top hatch cover assembly
US-2022063682-A1 · Mar 3, 2022 · US
Ceiling module for a vehicle
US-11072350-B2 · Jul 27, 2021 · US
Gasket for hatch cover assembly of a rail car
US-2021039687-A1 · Feb 11, 2021 · US
Railway car hatch cover latch
US-10661815-B2 · May 26, 2020 · US
Mobile fulfillment centers with intermodal carriers and unmanned aerial vehicles
US-10625859-B2 · Apr 21, 2020 · US
Mobile fulfillment centers with intermodal carriers and unmanned aerial vehicles
US-2019389580-A1 · Dec 26, 2019 · US
Mobile fulfillment centers with intermodal carriers and unmanned aerial vehicles
US-10421542-B2 · Sep 24, 2019 · US
Railway car hatch cover latch
US-2019161096-A1 · May 30, 2019 · US
Ceiling module for a vehicle
US-2019111948-A1 · Apr 18, 2019 · US
Mobile fulfillment centers with intermodal carriers and unmanned aerial vehicles
US-2018265295-A1 · Sep 20, 2018 · US
Rear-ventilated awning for roof units of rail vehicles
US-9463813-B2 · Oct 11, 2016 · US
Rear-ventilated awning for roof units of rail vehicles
US-2015336592-A1 · Nov 26, 2015 · US