Automated shell and tube heat exchanger cleaner
US-2026002744-A1 · Jan 1, 2026 · US
from internal surfaces of heat exchange conduits
from internal 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 | F28G3/163 |
| Official title | {from internal surfaces of heat exchange conduits} |
| Display label | from internal surfaces of heat exchange conduits |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 9 |
| 2019 | 2 |
| 2020 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flexible lance drive apparatus with autostroke function
US-12422203-B2 · Sep 23, 2025 · US
Sludge lance for cleaning a steam generator
US-2025251202-A1 · Aug 7, 2025 · US
Flexible Lance Drive Apparatus with Autostroke Function
US-2024410663-A1 · Dec 12, 2024 · US
Flexible lance drive apparatus with autostroke function
US-11874077-B2 · Jan 16, 2024 · US
Method for manufacturing water absorbent resin
US-2023149981-A1 · May 18, 2023 · US
Systems for Cooling Recycled Off-Gas in Low-Density Polyethylene Production
US-2023077287-A1 · Mar 9, 2023 · US
Flexible Lance Drive Apparatus with Autostroke Function
US-2023028473-A1 · Jan 26, 2023 · US
Flexible lance drive apparatus with autostroke function
US-11460257-B2 · Oct 4, 2022 · US
Flexible tube cleaning lance positioner apparatus
US-10809023-B2 · Oct 20, 2020 · US
Flexible tube cleaning lance positioner frame apparatus
US-10684082-B2 · Jun 16, 2020 · US
Self-rotating tube cleaning nozzle assembly
US-10598449-B2 · Mar 24, 2020 · US
Flexible lance drive apparatus with autostroke function
US-2020056851-A1 · Feb 20, 2020 · US
Pro-boxer flexible lance positioner apparatus
US-10480874-B2 · Nov 19, 2019 · US
Method for negating deposits using turbulence
US-10247494-B2 · Apr 2, 2019 · US
Flexible lance drive apparatus with autostroke function
US-2018372432-A1 · Dec 27, 2018 · US
Flexible tube cleaning lance positioner frame apparatus
US-2018292151-A1 · Oct 11, 2018 · US
Flexible tube cleaning lance positioner apparatus
US-2018266777-A1 · Sep 20, 2018 · US
Method for Negating Deposits Using Turbulence
US-2018231336-A1 · Aug 16, 2018 · US
Flexible tube cleaning lance positioner frame apparatus
US-10024613-B2 · Jul 17, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28G3/163?
- CPC F28G3/163 is the Cooperative Patent Classification code for “from internal surfaces of heat exchange conduits.”
- How many patents are filed under CPC F28G3/163 (from internal surfaces of heat exchange conduits)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC F28G3/163 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).