Closure adapter
US-2025334214-A1 · Oct 30, 2025 · US
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Pipe units with cleaning aperture and closure therefor
Pipe units with cleaning aperture and closure therefor · 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 | F16L45/00 |
| Official title | Pipe units with cleaning aperture and closure therefor |
| Display label | Pipe units with cleaning aperture and closure therefor |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Through-air apparatus to reduce infiltration of ambient air
US-12012697-B2 · Jun 18, 2024 · US
Pipe cleaning assembly and method of cleaning a piping system using the same
US-11945011-B2 · Apr 2, 2024 · US
Pipe cleaning assembly and method of cleaning a piping system using the same
US-11772139-B2 · Oct 3, 2023 · US
Through-air apparatus to reduce infiltration of ambient air
US-2022380979-A1 · Dec 1, 2022 · US
Pipe cleaning assembly and method of cleaning a piping system using the same
US-2022176418-A1 · Jun 9, 2022 · US
Pipe cleaning assembly and method of cleaning a piping system using the same
US-2022176420-A1 · Jun 9, 2022 · US
Impact reducer for drainage stacks
US-11021858-B2 · Jun 1, 2021 · US
Impact reducer for drainage stacks
US-2020332506-A1 · Oct 22, 2020 · US
Systems for vacuum sealed access passage
US-9784397-B2 · Oct 10, 2017 · US
Fuel head assembly with replaceable wear components
US-9593795-B2 · Mar 14, 2017 · US
Systems for vacuum sealed access passage
US-2016305594-A1 · Oct 20, 2016 · US
Connecting device
US-9366372-B2 · Jun 14, 2016 · US
Piping component and pipe
US-2015362104-A1 · Dec 17, 2015 · US
Bottom drop tee with door catch
US-9010811-B2 · Apr 21, 2015 · US