Housing for filter element; filter element; methods of use and making
US-10512859-B2 · Dec 24, 2019 · US
arranged for inward flow filtration
arranged for inward flow filtration · 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 | B01D29/33 |
| Official title | arranged for inward flow filtration |
| Display label | arranged for inward flow filtration |
| Total patents | 202 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 10 |
| 2018 | 16 |
| 2019 | 24 |
| 2020 | 21 |
| 2021 | 32 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 22 |
| 2025 | 25 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifugal debris pre-separator for turbine engine oil filter
US-2019345853-A1 · Nov 14, 2019 · US
Filter device and filtration device
US-2019321758-A1 · Oct 24, 2019 · US
Fluid filter cartridge, fluid filter arrangement, and method for servicing a fluid filter arrangement
US-10428776-B2 · Oct 1, 2019 · US
Filter, filter device, and method of use
US-10413852-B2 · Sep 17, 2019 · US
Dishwasher appliance with a fine filter
US-2019239715-A1 · Aug 8, 2019 · US
Fluid Filter with a Filter Connecting Piece Having an Outer Section, a Middle Section and an Inner Section
US-2019217225-A1 · Jul 18, 2019 · US
Tubular mesh filter
US-10350517-B2 · Jul 16, 2019 · US
Filter housing
US-10350523-B2 · Jul 16, 2019 · US
Filter center tube with standpipe and flow fins
US-2019176061-A1 · Jun 13, 2019 · US
Water purifying apparatus and filter structure
US-2019151784-A1 · May 23, 2019 · US
Return filter
US-10272373-B2 · Apr 30, 2019 · US
Anti-drip filter assembly
US-10272370-B2 · Apr 30, 2019 · US
Disk filter for preventing scale formation and water treatment apparatus and method using the same
US-2019119135-A1 · Apr 25, 2019 · US
Filter for fuel injection systems
US-10267281-B2 · Apr 23, 2019 · US
Filter center tube with standpipe and flow fins
US-10245532-B2 · Apr 2, 2019 · US
A filter and a method for checking the suitability of a filter element
US-2019070537-A1 · Mar 7, 2019 · US
Processing of computer log messages for visualization and retrieval
US-2019073406-A1 · Mar 7, 2019 · US
Integrated, automated possum belly
US-2019055798-A1 · Feb 21, 2019 · US
Strainers
US-10202871-B2 · Feb 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D29/33?
- CPC B01D29/33 is the Cooperative Patent Classification code for “arranged for inward flow filtration.”
- How many patents are filed under CPC B01D29/33 (arranged for inward flow filtration)?
- Our database includes 202 publications tagged with this CPC code.
- Is patent activity under CPC B01D29/33 growing?
- Publication counts under this code: 22 in 2024 vs 25 in 2025 (latest complete years).