Flush toilet
US-12421708-B2 · Sep 23, 2025 · US
Protecting water resources
Protecting water resources · Cooperative Patent Classification (CPC)
General tagging of emerging or interdisciplinary technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | Y02A20/40 |
| Official title | Protecting water resources |
| Display label | Protecting water resources |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 8 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 4 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flush toilet apparatus
US-12352028-B2 · Jul 8, 2025 · US
Water pipe adapter, a tank assembly, and a toilet apparatus
US-2024318752-A1 · Sep 26, 2024 · US
Flush toilet apparatus
US-2023313513-A1 · Oct 5, 2023 · US
Flush toilet
US-2023272607-A1 · Aug 31, 2023 · US
Inflatable sprayhead
US-2023201846-A1 · Jun 29, 2023 · US
Flush toilet
US-11479956-B2 · Oct 25, 2022 · US
Flush toilet
US-2021238836-A1 · Aug 5, 2021 · US
Toilet inlet configuration
US-10711444-B2 · Jul 14, 2020 · US
Shower head flow control structure
US-2019388914-A1 · Dec 26, 2019 · US
Smart shower head
US-2019366374-A1 · Dec 5, 2019 · US
Combined shower head with cool water discharging function
US-10449559-B2 · Oct 22, 2019 · US
Water stop device and shower head
US-10220395-B2 · Mar 5, 2019 · US
Discharge valve apparatus, flush water tank apparatus, and flush toilet
US-10119260-B2 · Nov 6, 2018 · US
Combined shower head with cool water discharging function
US-2018280995-A1 · Oct 4, 2018 · US
Toilet inlet configuration
US-2018119401-A1 · May 3, 2018 · US
Flush valve assembly and toilet flush system incorporating the same
US-9932728-B2 · Apr 3, 2018 · US
Flow restriction device and sanitary shower
US-2018085764-A1 · Mar 29, 2018 · US
Operating device for flush water tank assembly, flush water tank assembly, and flush toilet
US-9926694-B2 · Mar 27, 2018 · US
Water stop device and shower head
US-2018050353-A1 · Feb 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC Y02A20/40?
- CPC Y02A20/40 is the Cooperative Patent Classification code for “Protecting water resources.”
- How many patents are filed under CPC Y02A20/40 (Protecting water resources)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC Y02A20/40 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).