Method of Online Cleaning of Heater Exchangers
US-2020370849-A1 · Nov 26, 2020 · US
Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16)
Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16) · 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 | F28G9/00 |
| Official title | Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16) |
| Display label | Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16) |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 8 |
| 2017 | 8 |
| 2018 | 14 |
| 2019 | 14 |
| 2020 | 17 |
| 2021 | 12 |
| 2022 | 15 |
| 2023 | 14 |
| 2024 | 9 |
| 2025 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for polymerization with external cooling
US-2020308326-A1 · Oct 1, 2020 · US
Cleaning apparatus for heat exchanger and polishing apparatus
US-2020306920-A1 · Oct 1, 2020 · US
Activation and deactivation of a purge unit of a vapor compression system based at least in part on conditions within a condenser of the vapor compression system
US-2020240690-A1 · Jul 30, 2020 · US
Cleaning of a 3D printed article
US-10634440-B2 · Apr 28, 2020 · US
Method for semi-continuous heat exchange operations by alternating between heat exchangers
US-10533813-B2 · Jan 14, 2020 · US
Production method of alpha-olefin low polymer and production apparatus
US-10501566-B2 · Dec 10, 2019 · US
Piping system cleaning method, piping system, and steam turbine plant
US-10487685-B2 · Nov 26, 2019 · US
Air- cooled heat exchanger cleaning and temperature control apparatus and method
US-2019346222-A1 · Nov 14, 2019 · US
Method for cleaning process plants
US-2019314874-A1 · Oct 17, 2019 · US
Heat exchanger for vehicle having housing with heat exchange core installed therein
US-10443948-B2 · Oct 15, 2019 · US
Method of cleaning a heat exchanger
US-10393455-B2 · Aug 27, 2019 · US
Process for the oligomerization of olefins employing a cleaning device
US-10370307-B2 · Aug 6, 2019 · US
Low pressure integrated purge
US-2019234661-A1 · Aug 1, 2019 · US
Removal device for a fluid
US-10365024-B2 · Jul 30, 2019 · US
Scale removal in humidification-dehumidification systems
US-10345058-B1 · Jul 9, 2019 · US
Targeted heat exchanger deposit removal by combined dissolution and mechanical removal
US-10309032-B2 · Jun 4, 2019 · US
Cooling water monitoring and control system
US-2019145722-A1 · May 16, 2019 · US
Method for negating deposits using turbulence
US-10247494-B2 · Apr 2, 2019 · US
Method of cleaning a charge air cooler and an internal combustion engine
US-2019017431-A1 · Jan 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28G9/00?
- CPC F28G9/00 is the Cooperative Patent Classification code for “Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16).”
- How many patents are filed under CPC F28G9/00 (Cleaning by flushing or washing, e.g. with chemical solvents (appliances using jets of fluid for removing debris F28G1/16, F28G3/16))?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC F28G9/00 growing?
- Publication counts under this code: 9 in 2024 vs 12 in 2025 (latest complete years).