B32B 5/269
Characterised by at least one non-woven fabric layer that is a melt-blown
Official title: {characterised by at least one non-woven fabric layer that is a melt-blown fabric next to a non-woven fabric layer that is a spunbonded fabric}
B32B5/269 (Characterised by at least one non-woven fabric layer that is a melt-blown) appears on 30 US grants and 85 published applications in this corpus.
Search patents in B32B- Granted patents
- 30
- Published applications
- 85
- Assignees
- 48
- Inventors
- 226
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 6 |
| 2021 | 0 | 5 |
| 2022 | 3 | 16 |
| 2023 | 6 | 17 |
| 2024 | 4 | 18 |
| 2025 | 9 | 13 |
| 2026 | 7 | 8 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Single sided hydrophilic nonwoven fabric with high tensible strength and CSR wrap made therefrom19 May 2026US 12,629,917 B2Magnera Corporation
- Sound-absorbing material and method of making such a sound-absorbing material7 Apr 2026US 12,597,407 B2O.R.V. Manufacturing S.P.A.
- Positively charged filter material with ability for removing charged particles efficiently, and method for producing same17 Mar 2026US 12,576,353 B2Toray Advanced Materials Korea Inc.
- Anti-propylene mask and method for preparation thereof10 Mar 2026US 12,569,705 B2Nantong Textile & Silk Ind Tech Res Inst
- Multi-layer meltblown non-woven fabric and preparation method thereof10 Mar 2026US 12,571,141 B2Toray Advanced Materials Korea Inc.
- Membrane backers and membranes for liquid filters11 Jun 2026US 2026/0158452 A1
- Spun-bonded nonwoven fabric, filter medium, air filter, and apparatus for producing filter medium4 Jun 2026US 2026/0152885 A1Toray Industries, Inc.
- Nonwoven fabrics including recycled polypropylene21 May 2026US 2026/0139418 A1Magnera Corporation
- Meltblown material formed from polyolefin fibers30 Apr 2026US 2026/0117434 A1O&M Halyard, Inc.
- Meltblown material formed from bicomponent polyolefin and polyester fibers30 Apr 2026US 2026/0117436 A1O&M Halyard, Inc.
Most cited
By later US patents