Pumped thermal storage cycles with turbomachine speed control
US-2023383998-A1 · Nov 30, 2023 · US
with heating by combustion gases of main boiler
with heating by combustion gases of main boiler · 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 | F01K3/20 |
| Official title | with heating by combustion gases of main boiler |
| Display label | with heating by combustion gases of main boiler |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 10 |
| 2018 | 3 |
| 2019 | 13 |
| 2020 | 2 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pumped thermal storage cycles with turbomachine speed control
US-11754319-B2 · Sep 12, 2023 · US
Coal fired power generation system and supercritical CO2 cycle system thereof
US-11306622-B2 · Apr 19, 2022 · US
Pumped thermal storage cycles with turbomachine speed control
US-2022042720-A1 · Feb 10, 2022 · US
Coal Fired Power Generation System And Supercritical CO2 Cycle System Thereof
US-2021381399-A1 · Dec 9, 2021 · US
System and method for providing supercritical steam
US-11162389-B2 · Nov 2, 2021 · US
Pumped thermal storage cycles with working fluid management
US-11156385-B2 · Oct 26, 2021 · US
Boiler and modifying method thereof
US-11015801-B2 · May 25, 2021 · US
Waste-to-energy plant
US-10989077-B2 · Apr 27, 2021 · US
Waste-to-energy plant
US-2020200047-A1 · Jun 25, 2020 · US
System and method for providing supercritical steam
US-2020032675-A1 · Jan 30, 2020 · US
System and method for providing supercritical steam
US-10465562-B2 · Nov 5, 2019 · US
Pumped thermal storage cycles with recuperation
US-10458721-B2 · Oct 29, 2019 · US
Varying compression ratios in energy storage and retrieval systems
US-10458283-B2 · Oct 29, 2019 · US
Methods of hot and cold side charging in thermal energy storage systems
US-10443452-B2 · Oct 15, 2019 · US
Pumped thermal systems with dedicated compressor/turbine pairs
US-10428693-B2 · Oct 1, 2019 · US
Pumped thermal and energy storage system units with pumped thermal system and energy storage system subunits
US-10428694-B2 · Oct 1, 2019 · US
Pumped thermal systems with variable stator pressure ratio control
US-10422250-B2 · Sep 24, 2019 · US
Hybrid Pumped Thermal Systems
US-2019212070-A1 · Jul 11, 2019 · US
Pumped Thermal Storage Cycles with Recuperation
US-2019195571-A1 · Jun 27, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01K3/20?
- CPC F01K3/20 is the Cooperative Patent Classification code for “with heating by combustion gases of main boiler.”
- How many patents are filed under CPC F01K3/20 (with heating by combustion gases of main boiler)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC F01K3/20 growing?
- Publication counts under this code: 2 in 2022 vs 2 in 2023 (latest complete years).