Clothes treating apparatus having filter cover
US-2026071374-A1 · Mar 12, 2026 · US
Other construction details
Other construction details · 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 | B01D2201/31 |
| Official title | Other construction details |
| Display label | Other construction details |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter device having a filter element
US-2025345730-A1 · Nov 13, 2025 · US
Gas-liquid separator with two-stage impaction media
US-2025303324-A1 · Oct 2, 2025 · US
Filter assembly and air cleaner including the same
US-2025281863-A1 · Sep 11, 2025 · US
Volumetric media and uses thereof
US-2025269307-A1 · Aug 28, 2025 · US
Filter device having a filter element
US-12390750-B2 · Aug 19, 2025 · US
Fuel filter
US-12364941-B2 · Jul 22, 2025 · US
Pump filter with predetermined swirl
US-12290774-B2 · May 6, 2025 · US
Water purifier
US-2025121307-A1 · Apr 17, 2025 · US
Data center cooling unit filter device
US-2025108318-A1 · Apr 3, 2025 · US
Fuel filter
US-12145090-B2 · Nov 19, 2024 · US
Fuel filter
US-2024350949-A1 · Oct 24, 2024 · US
Filter housing that accepts both single open end o-ring and double open end filter elements
US-12030004-B2 · Jul 9, 2024 · US
Fluid filter retention mechanism
US-2024207763-A1 · Jun 27, 2024 · US
Filter element and filter system
US-2024109015-A1 · Apr 4, 2024 · US
Filter interconnect utilizing correlated magnetic actuation for downstream system function
US-2024042353-A1 · Feb 8, 2024 · US
Liquid filter and filter element
US-2024009603-A1 · Jan 11, 2024 · US
Filter interconnect utilizing correlated magnetic actuation for downstream system function
US-11845021-B2 · Dec 19, 2023 · US
Filter interconnect utilizing correlated magnetic actuation for downstream system function
US-11712645-B2 · Aug 1, 2023 · US
Pump filter with predetermined swirl
US-2023173420-A1 · Jun 8, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2201/31?
- CPC B01D2201/31 is the Cooperative Patent Classification code for “Other construction details.”
- How many patents are filed under CPC B01D2201/31 (Other construction details)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC B01D2201/31 growing?
- Publication counts under this code: 7 in 2024 vs 9 in 2025 (latest complete years).