Filter system, positioning mechanism, filter element and method for inserting and positioning a filter element
US-12564804-B2 · Mar 3, 2026 · US
Made of at least two different materials, e.g. metal and plastic
Made of at least two different materials, e.g. metal and plastic · 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 | B01D35/308 |
| Official title | {Made of at least two different materials, e.g. metal and plastic} |
| Display label | Made of at least two different materials, e.g. metal and plastic |
| Total patents | 27 |
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 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spin-on fluid treatment device and methods
US-2025099885-A1 · Mar 27, 2025 · US
Spin-on fluid treatment device and methods
US-12161959-B2 · Dec 10, 2024 · US
Filter with electrostatic discharge mitigation sleeve
US-2024252961-A1 · Aug 1, 2024 · US
Filter with electrostatic discharge mitigation sleeve
US-11890560-B2 · Feb 6, 2024 · US
Water-treating ceramic filter unit
US-11819787-B2 · Nov 21, 2023 · US
Point of use or point of dispense filter with multiple pleat packs
US-2023302416-A1 · Sep 28, 2023 · US
Point of use or point of dispense filter with multiple pleat packs
US-11684898-B2 · Jun 27, 2023 · US
Filter system, positioning mechanism, filter element and method for inserting and positioning a filter element
US-2022401861-A1 · Dec 22, 2022 · US
Spin-on fluid treatment device and methods
US-2021331100-A1 · Oct 28, 2021 · US
Fuel filter
US-11130083-B2 · Sep 28, 2021 · US
Water-treating ceramic filter unit
US-2021252439-A1 · Aug 19, 2021 · US
Spin-on fluid treatment device and methods
US-11014026-B2 · May 25, 2021 · US
Filters with dynamic pore sizes
US-2020346142-A1 · Nov 5, 2020 · US
Filter with electrostatic discharge mitigation sleeve
US-2020346146-A1 · Nov 5, 2020 · US
Filter device
US-10343099-B2 · Jul 9, 2019 · US
Filter head and threaded metal nozzle insert
US-10245536-B2 · Apr 2, 2019 · US
Spin-on fluid treatment device and methods
US-2019046907-A1 · Feb 14, 2019 · US
Filter device
US-2019015769-A1 · Jan 17, 2019 · US
Filter for sulfur compounds
US-2018353885-A1 · Dec 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D35/308?
- CPC B01D35/308 is the Cooperative Patent Classification code for “Made of at least two different materials, e.g. metal and plastic.”
- How many patents are filed under CPC B01D35/308 (Made of at least two different materials, e.g. metal and plastic)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC B01D35/308 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).