Heat treatment system
US-2025383154-A1 · Dec 18, 2025 · US
transport or conveyor rolls for furnaces; roller rails
transport or conveyor rolls for furnaces; roller rails · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F27D3/026 |
| Official title | {transport or conveyor rolls for furnaces; roller rails} |
| Display label | transport or conveyor rolls for furnaces; roller rails |
| Total patents | 29 |
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 | 3 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for heating a blank and heating system
US-12163737-B2 · Dec 10, 2024 · US
Transport roller for heating furnaces
US-12111108-B2 · Oct 8, 2024 · US
Device for heating steel products
US-2024068062-A1 · Feb 29, 2024 · US
Roller for a roller hearth furnace
US-11867463-B2 · Jan 9, 2024 · US
Method for heating a blank and heating system
US-2023358473-A1 · Nov 9, 2023 · US
Method for heating a blank and heating system
US-11740023-B2 · Aug 29, 2023 · US
Magnetic cooling roll
US-11519052-B2 · Dec 6, 2022 · US
Transport roller for heating furnaces
US-2022333864-A1 · Oct 20, 2022 · US
High productivity plant for the quenching of steel bars, quenching machine and corresponding method for quenching steel bars
US-2022307102-A1 · Sep 29, 2022 · US
Magnetic cooling roll
US-2021332455-A1 · Oct 28, 2021 · US
Roller for a roller hearth furnace
US-2021310737-A1 · Oct 7, 2021 · US
Conveyance roller for heating furnace
US-2021061575-A1 · Mar 4, 2021 · US
Roller transport assembly for transporting rollers to and from a roller hearth furnace
US-10830536-B2 · Nov 10, 2020 · US
Method for heating a blank and heating system
US-2019376745-A1 · Dec 12, 2019 · US
Roller transport assembly for transporting rollers to and from a roller hearth furnace
US-2019285345-A1 · Sep 19, 2019 · US
Hearth roll and continuous annealing facility
US-10337082-B2 · Jul 2, 2019 · US
Hearth roll and manufacturing method therefor
US-10088236-B2 · Oct 2, 2018 · US
Uncooled furnace roll and method for producing an uncooled furnace roll
US-10088237-B2 · Oct 2, 2018 · US
Continuous heating furnace
US-9869516-B2 · Jan 16, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F27D3/026?
- CPC F27D3/026 is the Cooperative Patent Classification code for “transport or conveyor rolls for furnaces; roller rails.”
- How many patents are filed under CPC F27D3/026 (transport or conveyor rolls for furnaces; roller rails)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC F27D3/026 growing?
- Publication counts under this code: 4 in 2024 vs 1 in 2025 (latest complete years).