Rainwater reservoir
US-12467241-B2 · Nov 11, 2025 · US
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Switch valves in waste pipes
Switch valves in waste pipes · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E03B1/044 |
| Official title | {Switch valves in waste pipes} |
| Display label | Switch valves in waste pipes |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for point of use water modification
US-12392115-B2 · Aug 19, 2025 · US
Systems and methods for water re-use
US-12209397-B2 · Jan 28, 2025 · US
Rainwater reservoir
US-2024417959-A1 · Dec 19, 2024 · US
Level sensor
US-2023392969-A1 · Dec 7, 2023 · US
Ball drain wye strainer valve assembly
US-11802625-B2 · Oct 31, 2023 · US
Systems and methods for point of use water modification
US-2022315447-A1 · Oct 6, 2022 · US
Systems and methods for point of use water modification
US-2022316191-A1 · Oct 6, 2022 · US
Flow splitter and rain separator comprising the same
US-11460868-B2 · Oct 4, 2022 · US
Systems and methods for water re-use
US-2022162836-A1 · May 26, 2022 · US
Ball drain wye strainer valve assembly
US-2022057041-A1 · Feb 24, 2022 · US
Flow splitter and rain separator comprising the same
US-2020293069-A1 · Sep 17, 2020 · US
Optimizing a water recovery system
US-10754357-B2 · Aug 25, 2020 · US
Optimizing a water recovery system
US-2019384328-A1 · Dec 19, 2019 · US