Clothes treatment apparatus
US-2025215635-A1 · Jul 3, 2025 · US
Funnel filters; Holders therefor
Funnel filters; Holders therefor · 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 | B01D29/085 |
| Official title | Funnel filters; Holders therefor |
| Display label | Funnel filters; Holders therefor |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Liquid filtering method and system
US-12285708-B2 · Apr 29, 2025 · US
Handheld fluid sprayer
US-2025114810-A1 · Apr 10, 2025 · US
Filter cleaning assembly for a dishwasher appliance
US-12232677-B2 · Feb 25, 2025 · US
Handheld fluid sprayer
US-12208411-B2 · Jan 28, 2025 · US
Drain configuration
US-12012742-B2 · Jun 18, 2024 · US
Process monitoring and control of filtration by means of filtrate measurements
US-11975276-B2 · May 7, 2024 · US
Filter cleaning assembly for a dishwasher appliance
US-2024081605-A1 · Mar 14, 2024 · US
Inline filter cap with modulated flowpath
US-2023364534-A1 · Nov 16, 2023 · US
Liquid filtering method and system
US-2023311035-A1 · Oct 5, 2023 · US
Sand boil filter with adjustable hydraulic head
US-11745122-B2 · Sep 5, 2023 · US
Handheld fluid sprayer
US-11707753-B2 · Jul 25, 2023 · US
Liquid filtering system
US-11666840-B2 · Jun 6, 2023 · US
Separating solids from liquids in a drilling fluid
US-11643890-B2 · May 9, 2023 · US
Sand boil filter with adjustable hydraulic head
US-2023097147-A1 · Mar 30, 2023 · US
Handheld fluid sprayer
US-2023013939-A1 · Jan 19, 2023 · US
Connection device for a suction apparatus of a vacuum diaphragm filter
US-11426696-B2 · Aug 30, 2022 · US
Filter assembly for high volume evacuation
US-2022258075-A1 · Aug 18, 2022 · US
Handheld fluid sprayer
US-2022234062-A1 · Jul 28, 2022 · US
Separating solids from liquids in a drilling fluid
US-2022228450-A1 · Jul 21, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D29/085?
- CPC B01D29/085 is the Cooperative Patent Classification code for “Funnel filters; Holders therefor.”
- How many patents are filed under CPC B01D29/085 (Funnel filters; Holders therefor)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC B01D29/085 growing?
- Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).