Charge, storage, and discharge energy system using liquid air and sCO2
US-12258883-B2 · Mar 25, 2025 · US
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for storing steam in a liquid, e.g. Ruth's type (in alkali to increase steam pressure F22B1/20)
for storing steam in a liquid, e.g. Ruth's type (in alkali to increase steam pressure F22B1/20) · 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 | F01K1/04 |
| Official title | for storing steam in a liquid, e.g. Ruth's type (in alkali to increase steam pressure F22B1/20) |
| Display label | for storing steam in a liquid, e.g. Ruth's type (in alkali to increase steam pressure F22B1/20) |
| Total patents | 17 |
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 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 5 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Charge, Storage, and Discharge Energy System Using Liquid Air and sCO2
US-2022389841-A1 · Dec 8, 2022 · US
Method for operating a combined gas and steam power plant with steam heated by an exothermic chemical reaction
US-11015490-B2 · May 25, 2021 · US
Exhaust diffuser
US-10851676-B2 · Dec 1, 2020 · US
Steam power plant having an improved control reserve
US-2020131940-A1 · Apr 30, 2020 · US
Gas-and-Steam Combined-Cycle Power Plant
US-2018340451-A1 · Nov 29, 2018 · US
Exhaust diffuser
US-2018328230-A1 · Nov 15, 2018 · US
Method for Operating a Combined Gas and Steam Power Plant
US-2018298787-A1 · Oct 18, 2018 · US
Thermochemical heat storage unit
US-10072894-B2 · Sep 11, 2018 · US
Subsurface thermal energy storage of heat generated by concentrating solar power
US-9897394-B2 · Feb 20, 2018 · US
Apparatus for reducing windage loss of steam turbines
US-2017370252-A1 · Dec 28, 2017 · US
Thermochemical Heat Storage Unit
US-2017321968-A1 · Nov 9, 2017 · US
Steam heat storage system
US-9683788-B2 · Jun 20, 2017 · US
Subsurface thermal energy storage of heat generated by concentrating solar power
US-2017038157-A1 · Feb 9, 2017 · US
Turbine engine with integrated heat recovery and cooling cycle system
US-2016281604-A1 · Sep 29, 2016 · US
Subsurface thermal energy storage of heat generated by concentrating solar power
US-9291367-B2 · Mar 22, 2016 · US
Steam heat storage system
US-2015219403-A1 · Aug 6, 2015 · US