Flushometer system
US-12442168-B2 · Oct 14, 2025 · US
with valves kept in open position by means of air or water pressure or by vacuum
with valves kept in open position by means of air or water pressure or by vacuum · Cooperative Patent Classification (CPC)
Building, mining, and civil engineering structures.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | E03D1/302 |
| Official title | {with valves kept in open position by means of air or water pressure or by vacuum} |
| Display label | with valves kept in open position by means of air or water pressure or by vacuum |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 11 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
System and Method for Run-On Detection
US-2025270801-A1 · Aug 28, 2025 · US
Flush toilet apparatus
US-12352028-B2 · Jul 8, 2025 · US
Pneumatic valve control device
US-12152380-B2 · Nov 26, 2024 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-12037779-B2 · Jul 16, 2024 · US
Pneumatic valve control device
US-11873630-B2 · Jan 16, 2024 · US
Pneumatic valve control device
US-2023417036-A1 · Dec 28, 2023 · US
Flush toilet apparatus
US-2023313513-A1 · Oct 5, 2023 · US
Pneumatic valve control device
US-2023193610-A1 · Jun 22, 2023 · US
Siphon activated valve
US-11434631-B2 · Sep 6, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-11421409-B2 · Aug 23, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-11421410-B2 · Aug 23, 2022 · US
Discharge valve system and method
US-11391391-B2 · Jul 19, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-11371229-B2 · Jun 28, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-11371230-B2 · Jun 28, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-11365535-B2 · Jun 21, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-11332917-B2 · May 17, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-2022074181-A1 · Mar 10, 2022 · US
Flush water tank apparatus and flush toilet apparatus provided with the same
US-2022074180-A1 · Mar 10, 2022 · US
Flushometer system
US-2022025627-A1 · Jan 27, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC E03D1/302?
- CPC E03D1/302 is the Cooperative Patent Classification code for “with valves kept in open position by means of air or water pressure or by vacuum.”
- How many patents are filed under CPC E03D1/302 (with valves kept in open position by means of air or water pressure or by vacuum)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC E03D1/302 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).