Dual-layer gas filters and systems and methods for making the same
US-2026097341-A1 · Apr 9, 2026 · US
characterised by at least one non-woven fabric layer that is a melt-blown fabric
characterised by at least one non-woven fabric layer that is a melt-blown fabric · 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 | B32B5/268 |
| Official title | {characterised by at least one non-woven fabric layer that is a melt-blown fabric} |
| Display label | characterised by at least one non-woven fabric layer that is a melt-blown fabric |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 17 |
| 2023 | 8 |
| 2024 | 10 |
| 2025 | 8 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter media including nonwoven fiber webs comprising nanofibers, and related methods
US-2026042041-A1 · Feb 12, 2026 · US
Nonwoven fabrics including recycled polypropylene
US-12546039-B2 · Feb 10, 2026 · US
Dual-layer gas filters and systems and methods for making the same
US-12539479-B2 · Feb 3, 2026 · US
Recyclable, asymmetrical-faced composite nonwoven textile having silicone-coated fibers
US-12502867-B2 · Dec 23, 2025 · US
Non-woven fabric for supporting solid electrolyte, and solid electrolyte sheet
US-12486602-B2 · Dec 2, 2025 · US
Architectural flooring underlayment
US-12442199-B2 · Oct 14, 2025 · US
Recyclable, asymmetrical-faced composite nonwoven textile
US-12434453-B2 · Oct 7, 2025 · US
Adhesive alloys and filter medias including such adhesive alloys
US-12427457-B2 · Sep 30, 2025 · US
Sound-absorbing material for electric vehicle
US-2025100467-A1 · Mar 27, 2025 · US
Soft absorbent coform nonwoven web
US-2025066961-A1 · Feb 27, 2025 · US
Soft absorbent coform nonwoven web
US-2025027239-A1 · Jan 23, 2025 · US
Depth filter
US-12157078-B2 · Dec 3, 2024 · US
Barrier Fabrics with Desirable Air Permeability
US-2024316898-A1 · Sep 26, 2024 · US
Recyclable, asymmetrical-faced composite nonwoven textile
US-2024308175-A1 · Sep 19, 2024 · US
Recyclable, asymmetrical-faced composite nonwoven textile
US-2024308176-A1 · Sep 19, 2024 · US
Debossed and pleated finishes for composite nonwoven textiles suitable for apparel and methods for producing the same
US-2024269960-A1 · Aug 15, 2024 · US
Breathable and waterproof cloth and manufacturing method thereof
US-2024227348-A1 · Jul 11, 2024 · US
High performance filter media
US-2024207764-A1 · Jun 27, 2024 · US
Recyclable, asymmetrical-faced composite nonwoven textile having varied denier
US-12005691-B2 · Jun 11, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B32B5/268?
- CPC B32B5/268 is the Cooperative Patent Classification code for “characterised by at least one non-woven fabric layer that is a melt-blown fabric.”
- How many patents are filed under CPC B32B5/268 (characterised by at least one non-woven fabric layer that is a melt-blown fabric)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC B32B5/268 growing?
- Publication counts under this code: 10 in 2024 vs 8 in 2025 (latest complete years).