Method of heating up furnace bottom, and burner lance used in the method
US-12259184-B2 · Mar 25, 2025 · US
Shaft or like vertical or substantially vertical furnaces · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F27B1/00 |
| Official title | Shaft or like vertical or substantially vertical furnaces |
| Display label | Shaft or like vertical or substantially vertical furnaces |
| Total patents | 15 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 1 |
| 2022 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12259184-B2 · Mar 25, 2025 · US
US-2024278176-A1 · Aug 22, 2024 · US
US-11859905-B2 · Jan 2, 2024 · US
US-2022178612-A1 · Jun 9, 2022 · US
US-10668443-B2 · Jun 2, 2020 · US
US-2019299242-A1 · Oct 3, 2019 · US
US-10357796-B2 · Jul 23, 2019 · US
US-10356852-B2 · Jul 16, 2019 · US
US-2018311632-A1 · Nov 1, 2018 · US
US-10016739-B2 · Jul 10, 2018 · US
US-2018093240-A1 · Apr 5, 2018 · US
US-2017171919-A1 · Jun 15, 2017 · US
US-2016236231-A1 · Aug 18, 2016 · US
US-2016236230-A1 · Aug 18, 2016 · US
US-9221027-B2 · Dec 29, 2015 · US