Gas turbine cogeneration system and method of operating the same
US-12221923-B2 · Feb 11, 2025 · US
Feed-water supply not provided for in other main groups
Feed-water supply not provided for in other main groups · 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 | F22D11/00 |
| Official title | Feed-water supply not provided for in other main groups |
| Display label | Feed-water supply not provided for in other main groups |
| Total patents | 27 |
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 | 3 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas turbine cogeneration system and method of operating the same
US-2024175392-A1 · May 30, 2024 · US
Steam turbine plant and control device, and water quality management method for steam turbine plant
US-11834969-B2 · Dec 5, 2023 · US
Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant
US-11802688-B2 · Oct 31, 2023 · US
Steam turbine plant and control device, and water quality management method for steam turbine plant
US-2022282639-A1 · Sep 8, 2022 · US
Vapor condensation method
US-11204207-B2 · Dec 21, 2021 · US
Vertical heat recovery steam generator
US-11118781-B2 · Sep 14, 2021 · US
Boiler fill valve with regulated fast-fill
US-11054129-B2 · Jul 6, 2021 · US
Evaporator system
US-10907823-B2 · Feb 2, 2021 · US
Seawater leakage detection device in feedwater system, method for detecting seawater leakage in feedwater system, and steam turbine plant
US-2020256218-A1 · Aug 13, 2020 · US
Vapor condensation method
US-2020173739-A1 · Jun 4, 2020 · US
Water quality management device, water treatment system, water quality management method, and program for optimizing water treatment system
US-10640392-B2 · May 5, 2020 · US
Deaerator
US-10605533-B2 · Mar 31, 2020 · US
Evaporator system
US-2019249865-A1 · Aug 15, 2019 · US
Vertical heat recovery steam generator
US-2019170344-A1 · Jun 6, 2019 · US
Boiler fill valve with regulated fast-fill
US-2019154252-A1 · May 23, 2019 · US
Drain recovery device
US-10094554-B2 · Oct 9, 2018 · US
Water quality management device, water treatment system, water quality management method, and program for optimizing water treatment system
US-2018282180-A1 · Oct 4, 2018 · US
Boiler water supply preheater system and boiler water supply preheating method
US-9857074-B2 · Jan 2, 2018 · US
Method and system for controlling water chemistry in power generation plant
US-9758880-B2 · Sep 12, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F22D11/00?
- CPC F22D11/00 is the Cooperative Patent Classification code for “Feed-water supply not provided for in other main groups.”
- How many patents are filed under CPC F22D11/00 (Feed-water supply not provided for in other main groups)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC F22D11/00 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).