Sludge lance for cleaning a steam generator
US-2025251202-A1 · Aug 7, 2025 · US
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from external surfaces of heat exchange conduits
from external surfaces of heat exchange conduits · 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 | F28G3/166 |
| Official title | {from external surfaces of heat exchange conduits} |
| Display label | from external surfaces of heat exchange conduits |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ice maker with reversing condenser fan motor to maintain clean condenser
US-11543161-B2 · Jan 3, 2023 · US
Ice maker with reversing condenser fan motor to maintain clean condenser
US-2021140690-A1 · May 13, 2021 · US
Ice maker with reversing condenser fan motor to maintain clean condenser
US-10928110-B2 · Feb 23, 2021 · US
Heat exchanger monitoring device that determines the presence or absence of an anomaly of a heat transfer surface of a heat transfer tube
US-10527371-B2 · Jan 7, 2020 · US
Method for predicting slagging production position and slagging production possibility in furnace
US-10185792-B2 · Jan 22, 2019 · US
System and method for determining a location of fouling on boiler heat transfer surface
US-9915589-B2 · Mar 13, 2018 · US
Heat exchanger monitoring device and heat exchanger monitoring method
US-2017211900-A1 · Jul 27, 2017 · US
Method for predicting slagging production position and slagging production possibility in furnace
US-2017177758-A1 · Jun 22, 2017 · US
Controlling cooling flow in a sootblower based on lance tube temperature
US-9671183-B2 · Jun 6, 2017 · US
Ice maker with reversing condenser fan motor to maintain clean condenser
US-2016327352-A1 · Nov 10, 2016 · US
System and method for determining a location of fouling on boiler heat transfer surface
US-2016025600-A1 · Jan 28, 2016 · US