B01D 2239/0622
Melt-blown
B01D2239/0622 (Melt-blown) appears on 363 US grants and 508 published applications in this corpus.
Search patents in B01D- Granted patents
- 363
- Published applications
- 508
- Assignees
- 235
- Inventors
- 1,107
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 16 | 0 |
| 1996 | 5 | 0 |
| 1997 | 19 | 0 |
| 1998 | 20 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 9 |
| 2003 | 3 | 3 |
| 2004 | 5 | 6 |
| 2005 | 3 | 1 |
| 2006 | 4 | 3 |
| 2007 | 1 | 9 |
| 2008 | 2 | 4 |
| 2009 | 1 | 4 |
| 2010 | 5 | 13 |
| 2011 | 3 | 10 |
| 2012 | 3 | 7 |
| 2013 | 5 | 10 |
| 2014 | 4 | 12 |
| 2015 | 11 | 11 |
| 2016 | 3 | 16 |
| 2017 | 5 | 18 |
| 2018 | 5 | 13 |
| 2019 | 18 | 19 |
| 2020 | 10 | 33 |
| 2021 | 17 | 56 |
| 2022 | 17 | 69 |
| 2023 | 15 | 75 |
| 2024 | 21 | 40 |
| 2025 | 30 | 31 |
| 2026 | 26 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Oil and fuel collector25 Aug 2026US 12,714,951 B2Manvers Engineering Limited
- Melt-blown nonwoven fabric, method of producing the same, layered body, filter for face mask, and face mask25 Aug 2026US 12,716,153 B2Kaneka Corporation
- Filtration unit and a method for biomaterial purification18 Aug 2026US 12,709,631 B2Life Technologies Corporation
- Filter media comprising a polyethersulfone-based fine fiber layer4 Aug 2026US 12,697,569 B2Hollingsworth & Vose Company
- Liquid chemical and method for producing liquid chemical9 Jun 2026US 12,650,647 B2FUJIFILM Corporation
- Filter material, method for producing the filter material, and use of melt-blown polypropylene fibers8 Oct 2026US 2026/0306979 A1Carl Freudenberg KG
- Depth filter10 Sep 2026US 2026/0263976 A1Jnc Corporation
- Depth filter10 Sep 2026US 2026/0263977 A1Jnc Corporation
- Composite materials3 Sep 2026US 2026/0257159 A1DelStar Technologies, Inc.
- Filtration media and filters27 Aug 2026US 2026/0249218 A1DelStar Technologies, Inc.
Most cited
By later US patents
- Melt-blown fibrous web1,019US 5,582,907 APall Corporation · 1996
- Web of blended microfibers and crimped bulking fibers445US 4,118,531 AMinnesota Mining and Manufacturing Company · 1978
- Bicomponent fibers and webs made therefrom302US 4,795,668 AMinnesota Mining and Manufacturing Company · 1989
- Method of charging electret filter media289US 5,496,507 AMinnesota Mining and Manufacturing Company · 1996
- Strong nonwoven fabrics from engineered multiconstituent fibers282US 5,108,827 AFiberweb North America, Inc. · 1992