Electrospun polymeric nanofiber filter material and devices
US-2024278172-A1 · Aug 22, 2024 · US
Electro-spun
Electro-spun · 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 | B01D2239/0631 |
| Official title | Electro-spun |
| Display label | Electro-spun |
| Total patents | 235 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 11 |
| 2017 | 15 |
| 2018 | 15 |
| 2019 | 13 |
| 2020 | 20 |
| 2021 | 27 |
| 2022 | 26 |
| 2023 | 31 |
| 2024 | 30 |
| 2025 | 26 |
| 2026 | 6 |
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
Filter medium, method for manufacturing same, and filter unit comprising same
US-2019366249-A1 · Dec 5, 2019 · US
Interlaced filtration barrier
US-10293291-B2 · May 21, 2019 · US
Interlaced Filtration Barrier
US-10150070-B2 · Dec 11, 2018 · US
Nanofiber vent device for urea water tank and method for manufacturing same
US-2018347427-A1 · Dec 6, 2018 · US
Interlaced filtration barrier
US-10137394-B2 · Nov 27, 2018 · US
Filter apparatus having a housing and filter media inside the housing
US-2018319146-A1 · Nov 8, 2018 · US
Stabilized protein fiber air filter materials and methods
US-2018311599-A1 · Nov 1, 2018 · US
Polyethersulfone fiber webs
US-2018290087-A1 · Oct 11, 2018 · US
Filter media including a waved filtration layer having a gradient
US-2018272258-A1 · Sep 27, 2018 · US
Removal of microorganisms from fluid samples using nanofiber filtration media
US-10064965-B2 · Sep 4, 2018 · US
Web comprising fine fiber and reactive, adsorptive or absorptive particulate
US-10058807-B2 · Aug 28, 2018 · US
Method for Producing a Filter Medium, and a Filter Medium
US-2018178150-A1 · Jun 28, 2018 · US
Fiter media includiing adhesives
US-2018169550-A1 · Jun 21, 2018 · US
Filter media including adhesives and/or oleophobic properties
US-2018169551-A1 · Jun 21, 2018 · US
Adsorptive liquid filter
US-2018147533-A1 · May 31, 2018 · US
Removal of microorganisms from fluid samples using nanofiber filtration media
US-9943616-B2 · Apr 17, 2018 · US
Removal of microorganisms from fluid samples using nanofiber filtration media
US-9889214-B2 · Feb 13, 2018 · US
Removal of Microorganisms from Fluid Samples Using Nanofiber Filtration Media
US-2017360970-A1 · Dec 21, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2239/0631?
- CPC B01D2239/0631 is the Cooperative Patent Classification code for “Electro-spun.”
- How many patents are filed under CPC B01D2239/0631 (Electro-spun)?
- Our database includes 235 publications tagged with this CPC code.
- Is patent activity under CPC B01D2239/0631 growing?
- Publication counts under this code: 30 in 2024 vs 26 in 2025 (latest complete years).