D04H 1/541
Composite fibres
Official title: Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
D04H1/541 (Composite fibres) appears on 477 US grants and 723 published applications in this corpus.
Search patents in D04H- Granted patents
- 477
- Published applications
- 723
- Assignees
- 338
- Inventors
- 1,628
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 4 |
| 2002 | 13 | 11 |
| 2003 | 13 | 17 |
| 2004 | 3 | 16 |
| 2005 | 5 | 22 |
| 2006 | 4 | 22 |
| 2007 | 3 | 12 |
| 2008 | 6 | 24 |
| 2009 | 2 | 18 |
| 2010 | 12 | 25 |
| 2011 | 12 | 26 |
| 2012 | 7 | 27 |
| 2013 | 19 | 40 |
| 2014 | 9 | 25 |
| 2015 | 15 | 37 |
| 2016 | 24 | 33 |
| 2017 | 20 | 22 |
| 2018 | 20 | 19 |
| 2019 | 18 | 45 |
| 2020 | 14 | 37 |
| 2021 | 23 | 48 |
| 2022 | 19 | 50 |
| 2023 | 22 | 38 |
| 2024 | 27 | 47 |
| 2025 | 28 | 32 |
| 2026 | 21 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lofty nonwoven fabrics29 Sep 2026US 12,746,735 B2Magnera Corporation
- Layered composite articles and methods of making same8 Sep 2026US 12,728,621 B2Columbia Insurance Company
- Sheath-core conjugated fiber for supporter of water treatment separation membrane, supporter comprising same for water treatment separation membrane, water treatment separation membrane comprising same, and filter module comprising same7 Jul 2026US 12,673,299 B2Toray Advanced Materials Korea Inc.
- Paper machine clothing and method30 Jun 2026US 12,668,924 B2Voith Patent GmbH
- Material and method for providing insulation to a foundation wall16 Jun 2026US 12,655,627 B2Garland Industries, Inc.
- Silky, fine-denier non-woven fabric and manufacturing method therefor8 Oct 2026US 2026/0308827 A1Xiamen Yanjan New Material Co., Ltd.
- Nonwoven fabric having improved strength and softness10 Sep 2026US 2026/0265969 A1Fitesa Simpsonville, Inc.
- Method for producing a fiber material element and system for carrying out the method20 Aug 2026US 2026/0242989 A1Saint-Gobain Ecophon AB
- Heat transfer suppression sheet and battery pack20 Aug 2026US 2026/0246022 A1Ibiden Co., Ltd.
- Long-fiber nonwoven fabric, method for producing same, and process protection material13 Aug 2026US 2026/0234850 A1Toray Industries, Inc.
Most cited
By later US patents
- Tufted fibrous web1,198US 7,682,686 B2The Procter & Gamble Company · 2010
- Pattern-unbonded nonwoven web and process for making the same405US 5,858,515 AKimberly-Clark Worldwide, Inc. · 1999
- Strong nonwoven fabrics from engineered multiconstituent fibers282US 5,108,827 AFiberweb North America, Inc. · 1992
- Thermoplastic material containing absorbent pad or other article232US 4,886,697 AWeyerhaeuser Company · 1989
- Wipers comprising point unbonded webs187US 5,962,112 AKimberly-Clark Worldwide, Inc. · 1999