Plate-shaped heat insulator, combustion chamber, boiler and water heater
US-2023151962-A1 · May 18, 2023 · US
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involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely
involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely · 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 | F22B21/04 |
| Official title | involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely |
| Display label | involving a single upper drum and a single lower drum, e.g. the drums being arranged transversely |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Boiler and method for controlling boiler
US-2020191382-A1 · Jun 18, 2020 · US
Modular reactor steam generator configured to cover a reactor outer wall circumference
US-10249397-B2 · Apr 2, 2019 · US
Externally integrated steam generator type small modular reactor
US-2018033505-A1 · Feb 1, 2018 · US
Continuous steam generator with equalizing chamber
US-9581327-B2 · Feb 28, 2017 · US
Suspended combustion type power steam generator
US-9470415-B2 · Oct 18, 2016 · US
Burner and boiler equipped with burner
US-2016178196-A1 · Jun 23, 2016 · US
Separatorless boiler
US-2016084496-A1 · Mar 24, 2016 · US
Freeze protection system for solar receiver
US-9273884-B2 · Mar 1, 2016 · US
Suspended combustion type power steam generator capable of rapid and high-temperature pyrolysis using frdf for extending residence time of high-temperature gas
US-2015059659-A1 · Mar 5, 2015 · US
Separatorless boiler
US-2015047580-A1 · Feb 19, 2015 · US