Power generation facility
US-2025012207-A1 · Jan 9, 2025 · US
Use of two or more feed-water heaters in series
Use of two or more feed-water heaters in series · 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 | F01K7/40 |
| Official title | Use of two or more feed-water heaters in series |
| Display label | Use of two or more feed-water heaters in series |
| Total patents | 58 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 13 |
| 2017 | 10 |
| 2018 | 7 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Power generation facility
US-2024117759-A1 · Apr 11, 2024 · US
Hybrid power generation equipment
US-11391204-B2 · Jul 19, 2022 · US
Hybrid power generation equipment
US-2022136412-A1 · May 5, 2022 · US
Steam power plant, modification method and operation method of steam power plant
US-11236640-B2 · Feb 1, 2022 · US
Condensate and feedwater system of steam power plant and operation method for the same
US-10982567-B2 · Apr 20, 2021 · US
Flexible coal-fired power generation system and operation method thereof
US-10968784-B2 · Apr 6, 2021 · US
Thermal power generation system and control method for same
US-10968783-B2 · Apr 6, 2021 · US
Power plant and power output increase controlling method for power plant
US-10941677-B2 · Mar 9, 2021 · US
Flexible coal-fired power generation system and operation method thereof
US-2021033004-A1 · Feb 4, 2021 · US
Steam Power Plant, Modification Method and Operation Method of Steam Power Plant
US-2021017882-A1 · Jan 21, 2021 · US
Power Plant and Power Output Increase Controlling Method for Power Plant
US-2020308991-A1 · Oct 1, 2020 · US
Condensate and Feedwater System of Steam Power Plant and Operation Method for the Same
US-2020271019-A1 · Aug 27, 2020 · US
Method for operating a steam power plant and steam power plant for conducting said method
US-10208630-B2 · Feb 19, 2019 · US
Oxy boiler power plant oxygen feed system heat integration
US-10203112-B2 · Feb 12, 2019 · US
Thermal power generation system and control method for same
US-2018328231-A1 · Nov 15, 2018 · US
Apparatus and method for reactor power control of steam turbine power generation system
US-10060297-B2 · Aug 28, 2018 · US
Coal fired oxy plant with air separation unit including parallel coupled heat exchanger
US-10006634-B2 · Jun 26, 2018 · US
Oxy boiler power plant with a heat integrated air separation unit
US-10001279-B2 · Jun 19, 2018 · US
Coal fired Oxy plant with Flue Gas Heat Recovery
US-9915424-B2 · Mar 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01K7/40?
- CPC F01K7/40 is the Cooperative Patent Classification code for “Use of two or more feed-water heaters in series.”
- How many patents are filed under CPC F01K7/40 (Use of two or more feed-water heaters in series)?
- Our database includes 58 publications tagged with this CPC code.
- Is patent activity under CPC F01K7/40 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).