Coke oven roof repair or replacement
US-12559683-B2 · Feb 24, 2026 · US
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Crowns; Roofs
Crowns; Roofs · 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 | F27D1/02 |
| Official title | Crowns; Roofs |
| Display label | Crowns; Roofs |
| Total patents | 14 |
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 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coke oven roof repair or replacement
US-2025313756-A1 · Oct 9, 2025 · US
System and method for repairing a coke oven
US-11845898-B2 · Dec 19, 2023 · US
System and method for repairing a coke oven
US-2022204859-A1 · Jun 30, 2022 · US
System and method for repairing a coke oven
US-11186778-B2 · Nov 30, 2021 · US
System and method for repairing a coke oven
US-2021032541-A1 · Feb 4, 2021 · US
System and method for repairing a coke oven
US-10851306-B2 · Dec 1, 2020 · US
Refractory product having improved flow
US-10233107-B2 · Mar 19, 2019 · US
System and method for repairing a coke oven
US-2018340122-A1 · Nov 29, 2018 · US
Roof for electric furnace
US-10132566-B2 · Nov 20, 2018 · US
Brick linkage system
US-10048005-B2 · Aug 14, 2018 · US
Thermal shielding system
US-9803925-B2 · Oct 31, 2017 · US
Methodology for annealing group iii-nitride semiconductor device structures using novel weighted cover systems
US-2016061528-A1 · Mar 3, 2016 · US
Thermal shielding system
US-2015345868-A1 · Dec 3, 2015 · US