D01F 1/02
Addition of substances to the spinning solution or to the melt
Official title: Addition of substances to the spinning solution or to the melt (addition of substances to viscose D01F2/08)
D01F1/02 (Addition of substances to the spinning solution or to the melt) appears on 2,495 US grants and 3,423 published applications in this corpus.
Search patents in D01F- Granted patents
- 2,495
- Published applications
- 3,423
- Assignees
- 1,614
- Inventors
- 7,921
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 24 | 0 |
| 1978 | 24 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 10 | 0 |
| 1982 | 13 | 0 |
| 1983 | 13 | 0 |
| 1984 | 15 | 0 |
| 1985 | 12 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 22 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 20 | 0 |
| 1992 | 27 | 0 |
| 1993 | 35 | 0 |
| 1994 | 27 | 0 |
| 1995 | 37 | 0 |
| 1996 | 30 | 0 |
| 1997 | 37 | 0 |
| 1998 | 38 | 0 |
| 1999 | 54 | 0 |
| 2000 | 55 | 0 |
| 2001 | 56 | 15 |
| 2002 | 41 | 40 |
| 2003 | 32 | 64 |
| 2004 | 53 | 99 |
| 2005 | 31 | 81 |
| 2006 | 31 | 84 |
| 2007 | 32 | 85 |
| 2008 | 30 | 87 |
| 2009 | 27 | 105 |
| 2010 | 45 | 130 |
| 2011 | 49 | 137 |
| 2012 | 56 | 124 |
| 2013 | 64 | 133 |
| 2014 | 56 | 122 |
| 2015 | 82 | 154 |
| 2016 | 77 | 154 |
| 2017 | 87 | 183 |
| 2018 | 94 | 171 |
| 2019 | 115 | 180 |
| 2020 | 131 | 221 |
| 2021 | 141 | 235 |
| 2022 | 102 | 204 |
| 2023 | 131 | 197 |
| 2024 | 152 | 189 |
| 2025 | 132 | 144 |
| 2026 | 78 | 85 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Color-changing antibacterial nanofiber29 Sep 2026US 12,746,214 B2University of Manitoba
- Colored fiber, method for manufacturing colored fiber, and fiber product29 Sep 2026US 12,747,518 B2Kaneka Corporation
- Spinning solution, and alginate fiber comprising cannabidiol, method for producing the same, and use thereof22 Sep 2026US 12,740,946 B2Pell Bio-Med Technology Co., Ltd.
- Polymer fibers with shear-thickening liquid cores22 Sep 2026US 12,742,262 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Multifunctional filter materials8 Oct 2026US 2026/0305741 A1Khalifa University of Science and Technology
- High-temperature-resistant wear-resistant brush material and preparation method thereof8 Oct 2026US 2026/0308811 A1
- Roll-to-roll processing of hierarchically porous acrylic fibers through guided spinodal decomposition8 Oct 2026US 2026/0308812 A1
- Additive manufacturing polymers with high metal inclusion content8 Oct 2026US 2026/0308813 A1The Research Foundation for The State University of New York
- Man-made cellulose fiber1 Oct 2026US 2026/0297813 A1Kelheim Fibres GmbH
Most cited
By later US patents
- Drug releasing biodegradable fiber implant1,662US 6,596,296 B1Board of Regents, The University of Texas System · 2003
- Hydrophilic polypropylene fibers having antimicrobial activity1,367US 6,762,339 B13M Innovative Properties Company · 2004
- Vascular closure device1,319US 8,790,684 B2Cordis Corporation · 2014
- Solid freeform fabrication methods283US 5,738,817 ARutgers, The State University · 1998
- Drug releasing biodegradable fiber for delivery of therapeutics270US 7,033,603 B2Board of Regents, The University of Texas · 2006