D04H 1/43914
Hollow fibres
Official title: {hollow fibres}
D04H1/43914 (Hollow fibres) appears on 88 US grants and 120 published applications in this corpus.
Search patents in D04H- Granted patents
- 88
- Published applications
- 120
- Assignees
- 85
- Inventors
- 299
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 3 |
| 2003 | 3 | 9 |
| 2004 | 3 | 5 |
| 2005 | 0 | 5 |
| 2006 | 0 | 1 |
| 2007 | 2 | 6 |
| 2008 | 1 | 4 |
| 2009 | 0 | 3 |
| 2010 | 1 | 5 |
| 2011 | 1 | 3 |
| 2012 | 2 | 2 |
| 2013 | 4 | 4 |
| 2014 | 0 | 0 |
| 2015 | 3 | 8 |
| 2016 | 0 | 7 |
| 2017 | 1 | 5 |
| 2018 | 3 | 10 |
| 2019 | 2 | 6 |
| 2020 | 5 | 6 |
| 2021 | 2 | 3 |
| 2022 | 6 | 6 |
| 2023 | 3 | 6 |
| 2024 | 6 | 9 |
| 2025 | 4 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Self-rising board molding31 Mar 2026US 12,589,557 B2Piana Nonwovens, LLC.
- Multi-layer meltblown non-woven fabric and preparation method thereof10 Mar 2026US 12,571,141 B2Toray Advanced Materials Korea Inc.
- Durable pilling resistant nonwoven insulation13 Jan 2026US 12,522,961 B2Primaloft, Inc.
- Cellulose acetate-containing fibrous material for a nonwoven product, nonwoven product comprising such a fibrous material, and method for producing such a fibrous material26 Aug 2025US 12,398,488 B2Cerdia International GmbH
- Fine hollow fibers having a high void fraction5 Aug 2025US 12,377,001 B2Kimberly-Clark Worldwide, Inc.
- Fine Hollow Fibers Having a High Void Fraction22 Jan 2026US 2026/0020993 A1Kimberly-Clark Worldwide, Inc.
- Self-rising board molding17 Apr 2025US 2025/0121567 A1Piana Nonwovens, LLC.
- Web for down padding, and ultra-light down padding with 4-way high elasticity and high insulation including the same13 Feb 2025US 2025/0050619 A1Pan Pacific Corporation
- Fiber filling nonwoven6 Feb 2025US 2025/0043473 A1Far Eastern New Century Corporation
- Durable pilling resistant nonwoven insulation11 Jul 2024US 2024/0229313 A9Primaloft, Inc.
Most cited
By later US patents
- Multicomponent apertured nonwoven341US 6,632,504 B1BBA Nonwovens Simpsonville, Inc. · 2003
- Methods of using pre-formed nanotubes to make carbon nanotube films, layers, fabrics, ribbons, elements and articles123US 7,335,395 B2Nantero, Inc. · 2008
- High loft nonwoven fabric107US 4,883,707 AJames River Corporation · 1989
- Polyester fiberfill77US 4,818,599 AE. I. DuPont de Nemours and Company · 1989
- Biodegradable filament nonwoven fabrics and method of manufacturing the same69US 5,688,582 AUnitika Ltd. · 1997