Water heating apparatus and method for controlling the apparatus
US-11703253-B2 · Jul 18, 2023 · US
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Water heaters having plural combustion chambers
Water heaters having plural combustion chambers · 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 | F24H1/46 |
| Official title | Water heaters having plural combustion chambers |
| Display label | Water heaters having plural combustion chambers |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2018 | 2 |
| 2020 | 3 |
| 2021 | 6 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas manifold
US-11493236-B2 · Nov 8, 2022 · US
Combustion device
US-2021364192-A1 · Nov 25, 2021 · US
Gas manifold
US-2021293453-A1 · Sep 23, 2021 · US
Water heating apparatus and method for controlling the apparatus
US-2021190377-A1 · Jun 24, 2021 · US
Segregated fired heater
US-10962259-B2 · Mar 30, 2021 · US
Gas distribution assembly and water-heating device including the same
US-2021071907-A1 · Mar 11, 2021 · US
Tankless water heater apparatus, system, and methods
US-10895405-B2 · Jan 19, 2021 · US
Tankless Water Heater Apparatus, System, and Methods
US-2020096233-A1 · Mar 26, 2020 · US
Segregated fired heater
US-2020072503-A1 · Mar 5, 2020 · US
Combustion device and combustion device system including combustion device
US-10539338-B2 · Jan 21, 2020 · US
Water heater
US-10066852-B2 · Sep 4, 2018 · US
Combustion device and combustion device system including combustion device
US-2018112890-A1 · Apr 26, 2018 · US
Water heater
US-2016313027-A1 · Oct 27, 2016 · US
Combustion apparatus
US-9291364-B2 · Mar 22, 2016 · US