D01F 1/08
For forming hollow filaments
Official title: for forming hollow filaments
D01F1/08 (For forming hollow filaments) appears on 107 US grants and 115 published applications in this corpus.
Search patents in D01F- Granted patents
- 107
- Published applications
- 115
- Assignees
- 101
- Inventors
- 340
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 5 |
| 2010 | 1 | 3 |
| 2011 | 1 | 1 |
| 2012 | 3 | 1 |
| 2013 | 1 | 4 |
| 2014 | 2 | 3 |
| 2015 | 0 | 6 |
| 2016 | 1 | 10 |
| 2017 | 4 | 8 |
| 2018 | 5 | 11 |
| 2019 | 7 | 7 |
| 2020 | 8 | 9 |
| 2021 | 11 | 12 |
| 2022 | 4 | 3 |
| 2023 | 7 | 6 |
| 2024 | 4 | 6 |
| 2025 | 5 | 11 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hollow fiber membrane material for high-humidification hydrogen fuel cell humidifier and preparation method and application thereof6 Oct 2026US 12,753,530 B2University of Electronic Science and Technology of China
- Fiber11 Aug 2026US 12,703,931 B2OceanSafe AG
- Foamable yarns, textiles and articles incorporating foamable yarns, and the process of manufacturing the same19 May 2026US 12,630,948 B2NIKE, Inc.
- Preparation method of aerogel fiber and use7 Apr 2026US 12,595,593 B2Suzhou Institute of Nano-Tech and Nano-Bionics (Sinano) , Chinese Academy of Sciences
- Multi-layer meltblown non-woven fabric and preparation method thereof10 Mar 2026US 12,571,141 B2Toray Advanced Materials Korea Inc.
- High strength biomedical materials6 Aug 2026US 2026/0224782 A1Access Vascular, Inc.
- Fiber and method of forming the same26 Feb 2026US 2026/0055536 A1Nanyang Technological University
- Method and system for production of porous graphitic carbon materials embedded with active components30 Oct 2025US 2025/0333880 A1The Regents of the University of California
- Tufted carpet including polyethyleneterephthalate bulked continuous filament28 Aug 2025US 2025/0270740 A1Hs Hyosung Advanced Materials Corporation
- Nanobubbles for preparation of spun fibrous materials14 Aug 2025US 2025/0257497 A1Moleaer, Inc.
Most cited
By later US patents
- Porous polyvinylidene fluoride resin film and process for producing the same79US 6,299,773 B1Asahi Kasei Kogyo Kabushiki Kaisha · 2001
- Hollow fibers production method thereof and their applications particularly in the field of membrane-type separations69US 4,882,223 ACentre National De La Recherche Scientifique · 1989
- Pile composition having expanded fibers49US 4,788,093 AKanegafuchi Kagaku Kogyo Kabushiki Kaisha · 1988
- Fiber batts and the method of making48US 4,666,763 AAkzona Incorporated · 1987
- Process of making hollow filaments48US 6,120,718 ABASF SE · 2000