Water purifier
US-2019389712-A1 · Dec 26, 2019 · US
Plug, tap, or cock filters {filtering elements mounted in or on a faucet}
Plug, tap, or cock filters {filtering elements mounted in or on a faucet} · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D35/04 |
| Official title | Plug, tap, or cock filters {filtering elements mounted in or on a faucet} |
| Display label | Plug, tap, or cock filters {filtering elements mounted in or on a faucet} |
| Total patents | 145 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 11 |
| 2018 | 12 |
| 2019 | 31 |
| 2020 | 21 |
| 2021 | 19 |
| 2022 | 19 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter insert for a water outlet fitting with drinking water filter
US-2019382287-A1 · Dec 19, 2019 · US
Water outlet fitting with drinking water filter
US-2019382986-A1 · Dec 19, 2019 · US
Water purifier
US-2019382281-A1 · Dec 19, 2019 · US
Lattice control cage for a regulator
US-2019338865-A1 · Nov 7, 2019 · US
Water purifier
US-2019276336-A1 · Sep 12, 2019 · US
Outlet mechanism with filtered water and tap water outlet modes
US-10400428-B2 · Sep 3, 2019 · US
Lattice control cage for a regulator
US-10359128-B2 · Jul 23, 2019 · US
Truncated filter capsule
US-10350522-B2 · Jul 16, 2019 · US
Cartridge for water purifier, and water purifier
US-2019176089-A1 · Jun 13, 2019 · US
Induction heating module and water purifier having the same
US-2019170395-A1 · Jun 6, 2019 · US
Sterilization water discharge device and water treatment device including same
US-2019118123-A1 · Apr 25, 2019 · US
Induction heating module and water purifier having the same
US-10267535-B2 · Apr 23, 2019 · US
Filter assembly
US-10252197-B2 · Apr 9, 2019 · US
Filter assembly for solenoid-actuated valve
US-2019091611-A1 · Mar 28, 2019 · US
Filter band assembly for solenoid-actuated valve
US-2019085878-A1 · Mar 21, 2019 · US
Purification device
US-2019060801-A1 · Feb 28, 2019 · US
Purification device
US-2019060806-A1 · Feb 28, 2019 · US
Purification device
US-2019060807-A1 · Feb 28, 2019 · US
Purification device
US-2019060805-A1 · Feb 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D35/04?
- CPC B01D35/04 is the Cooperative Patent Classification code for “Plug, tap, or cock filters {filtering elements mounted in or on a faucet}.”
- How many patents are filed under CPC B01D35/04 (Plug, tap, or cock filters {filtering elements mounted in or on a faucet})?
- Our database includes 145 publications tagged with this CPC code.
- Is patent activity under CPC B01D35/04 growing?
- Publication counts under this code: 5 in 2024 vs 6 in 2025 (latest complete years).