Sludge lance for cleaning a steam generator
US-2025251202-A1 · Aug 7, 2025 · US
Devices for removing water, minerals or sludge from boilers (F22B37/483, F22B37/50, F22B37/52 and F22B37/54 take precedence)
Devices for removing water, minerals or sludge from boilers (F22B37/483, F22B37/50, F22B37/52 and F22B37/54 take precedence) · 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 | F22B37/486 |
| Official title | {Devices for removing water, minerals or sludge from boilers (F22B37/483, F22B37/50, F22B37/52 and F22B37/54 take precedence)} |
| Display label | Devices for removing water, minerals or sludge from boilers (F22B37/483, F22B37/50, F22B37/52 and F22B37/54 take precedence) |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method of removing foreign substances from steam generator
US-12345412-B2 · Jul 1, 2025 · US
Apparatus and method of removing foreign substances from steam generator
US-2023138837-A1 · May 4, 2023 · US
Steam generator with pre-heat chamber and filter
US-11618992-B2 · Apr 4, 2023 · US
Natural circulation multi-circulation package boiler with superheat for steam assisted gravity drainage (SAGD) process including superheat
US-11415314-B2 · Aug 16, 2022 · US
Steam generator dual head sludge lance
US-11209159-B2 · Dec 28, 2021 · US
Steam generator
US-10973360-B2 · Apr 13, 2021 · US
Natural circulation multi-circulation package boiler with superheat for steam assisted gravity drainage (sagd) process including superheat
US-2020400305-A1 · Dec 24, 2020 · US
Steam generator with pre-heat chamber and filter
US-2020165769-A1 · May 28, 2020 · US
Removal of carbonaceous microbeads
US-10480781-B2 · Nov 19, 2019 · US
Steam generator
US-2019282020-A1 · Sep 19, 2019 · US
Steam generator
US-10357126-B2 · Jul 23, 2019 · US
Steam generator sludge lance apparatus
US-10125976-B2 · Nov 13, 2018 · US
Steam generator dual head sludge lance
US-2018224118-A1 · Aug 9, 2018 · US
Removal of carbonaceous microbeads
US-2018195713-A1 · Jul 12, 2018 · US
Steam generator dual head sludge lance
US-10012381-B2 · Jul 3, 2018 · US
Stem generator sludge lance apparatus
US-2018142885-A1 · May 24, 2018 · US
Method for processing a liquid medium and processing plant
US-2018080646-A1 · Mar 22, 2018 · US
Steam generator sludge lance apparatus
US-9920925-B2 · Mar 20, 2018 · US
Draining a power plant
US-9719676-B2 · Aug 1, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F22B37/486?
- CPC F22B37/486 is the Cooperative Patent Classification code for “Devices for removing water, minerals or sludge from boilers (F22B37/483, F22B37/50, F22B37/52 and F22B37/54 take precedence).”
- How many patents are filed under CPC F22B37/486 (Devices for removing water, minerals or sludge from boilers (F22B37/483, F22B37/50, F22B37/52 and F22B37/54 take precedence))?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC F22B37/486 growing?
- Publication counts under this code: 2 in 2023 vs 2 in 2025 (latest complete years).