Electrospun polymeric nanofiber filter material and devices
US-2024278172-A1 · Aug 22, 2024 · US
comprising nanofibres
comprising nanofibres · 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 | B01D2239/025 |
| Official title | comprising nanofibres |
| Display label | comprising nanofibres |
| Total patents | 436 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 31 |
| 2017 | 24 |
| 2018 | 32 |
| 2019 | 40 |
| 2020 | 46 |
| 2021 | 44 |
| 2022 | 40 |
| 2023 | 55 |
| 2024 | 38 |
| 2025 | 47 |
| 2026 | 13 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fabrication of tragacanthin-PVA nanofibrous webs and applications thereof in water-absorbent filters
US-11896920-B2 · Feb 13, 2024 · US
Magnetic filter medium and method for its production
US-9687763-B2 · Jun 27, 2017 · US
Multilayer filter medium for filter, method for producing the same, and air filter
US-2016367922-A1 · Dec 22, 2016 · US
Articles containing nanofibers for use as barriers
US-2016369439-A1 · Dec 22, 2016 · US
High flux high efficiency nanofiber membranes and methods of production thereof
US-9511329-B2 · Dec 6, 2016 · US
Filtration material for filters, and filter cartridge
US-9498742-B2 · Nov 22, 2016 · US
Process for the fabrication of a water filter
US-2016310910-A1 · Oct 27, 2016 · US
Stable filter media including nanofibers
US-2016303498-A1 · Oct 20, 2016 · US
Nanofiber sheet and method of producing the sheet
US-2016296874-A1 · Oct 13, 2016 · US
Articles containing nanofibers for use as barriers
US-9464369-B2 · Oct 11, 2016 · US
Filter Medium and Filter Element with a Filter Medium
US-2016288033-A1 · Oct 6, 2016 · US
Porous composite membrane
US-9457322-B2 · Oct 4, 2016 · US
Filter material, filter element, and a method and a device for producing a filter material
US-2016279550-A1 · Sep 29, 2016 · US
Filter element
US-9440172-B2 · Sep 13, 2016 · US
Filter Medium, Method for Producing a Filter Medium and a Filter Element Having a Filter Medium
US-2016256805-A1 · Sep 8, 2016 · US
Ultrafine continuous fibrous ceramic filter and method of manufacturing same
US-2016244373-A1 · Aug 25, 2016 · US
Nanofiber coating, method for its production, and filter medium with such a coating
US-9421486-B2 · Aug 23, 2016 · US
Porous block nanofiber composite filters
US-9409111-B2 · Aug 9, 2016 · US
Filter material, filter element, and method and device for producing a filter material
US-2016199767-A1 · Jul 14, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2239/025?
- CPC B01D2239/025 is the Cooperative Patent Classification code for “comprising nanofibres.”
- How many patents are filed under CPC B01D2239/025 (comprising nanofibres)?
- Our database includes 436 publications tagged with this CPC code.
- Is patent activity under CPC B01D2239/025 growing?
- Publication counts under this code: 38 in 2024 vs 47 in 2025 (latest complete years).