D04H 1/43838
Ultrafine fibres
Official title: {Ultrafine fibres, e.g. microfibres}
D04H1/43838 (Ultrafine fibres) appears on 512 US grants and 631 published applications in this corpus.
Search patents in D04H- Granted patents
- 512
- Published applications
- 631
- Assignees
- 299
- Inventors
- 1,538
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 16 | 0 |
| 1998 | 16 | 0 |
| 1999 | 10 | 0 |
| 2000 | 15 | 0 |
| 2001 | 15 | 2 |
| 2002 | 14 | 19 |
| 2003 | 17 | 29 |
| 2004 | 21 | 22 |
| 2005 | 8 | 21 |
| 2006 | 7 | 25 |
| 2007 | 4 | 17 |
| 2008 | 4 | 14 |
| 2009 | 5 | 15 |
| 2010 | 9 | 42 |
| 2011 | 13 | 45 |
| 2012 | 27 | 24 |
| 2013 | 21 | 29 |
| 2014 | 16 | 21 |
| 2015 | 18 | 22 |
| 2016 | 17 | 28 |
| 2017 | 22 | 32 |
| 2018 | 15 | 20 |
| 2019 | 18 | 24 |
| 2020 | 21 | 26 |
| 2021 | 15 | 22 |
| 2022 | 13 | 27 |
| 2023 | 17 | 18 |
| 2024 | 23 | 33 |
| 2025 | 10 | 30 |
| 2026 | 17 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Artificial leather and method for manufacturing the same22 Sep 2026US 12,742,285 B2Toray Industries, Inc.
- Multilayer non-woven mat for lead acid batteries and applications therefor22 Sep 2026US 12,744,285 B2Johns Manville
- Breathable and waterproof cloth and manufacturing method thereof15 Sep 2026US 12,734,783 B2Taiwan Textile Research Institute
- High efficiency synthetic filter media1 Sep 2026US 12,722,107 B2Knowlton Technologies, LLC
- Honeycomb structure and method for manufacturing same18 Aug 2026US 12,709,829 B2Tohoku University
- Sanitary mask sheet17 Sep 2026US 2026/0272077 A1Kao Corporation
- Nonwoven Nanofiber Mat17 Sep 2026US 2026/0275595 A1
- Nanofiber pellicle film production and apparatus10 Sep 2026US 2026/0267218 A1Lintec of America, Inc.
- Porous membrane and method for manufacturing same27 Aug 2026US 2026/0250885 A1Celloid Co., Ltd.
- Grafted articles derived from porous polymeric fibers and methods thereof20 Aug 2026US 2026/0243018 A13M Innovative Properties Company
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
- Multicomponent apertured nonwoven341US 6,632,504 B1BBA Nonwovens Simpsonville, Inc. · 2003
- Nanotube films and articles330US 6,706,402 B2Nantero, Inc. · 2004
- Method of charging electret filter media289US 5,496,507 AMinnesota Mining and Manufacturing Company · 1996