D01F 8/04
From synthetic polymers
Official title: from synthetic polymers
D01F8/04 (From synthetic polymers) appears on 1,473 US grants and 1,705 published applications in this corpus.
Search patents in D01F- Granted patents
- 1,473
- Published applications
- 1,705
- Assignees
- 734
- Inventors
- 4,041
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 10 | 0 |
| 1978 | 11 | 0 |
| 1979 | 8 | 0 |
| 1980 | 10 | 0 |
| 1981 | 11 | 0 |
| 1982 | 15 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 20 | 0 |
| 1990 | 9 | 0 |
| 1991 | 20 | 0 |
| 1992 | 29 | 0 |
| 1993 | 24 | 0 |
| 1994 | 21 | 0 |
| 1995 | 26 | 0 |
| 1996 | 22 | 0 |
| 1997 | 42 | 0 |
| 1998 | 41 | 0 |
| 1999 | 64 | 0 |
| 2000 | 50 | 0 |
| 2001 | 49 | 14 |
| 2002 | 42 | 47 |
| 2003 | 45 | 82 |
| 2004 | 51 | 76 |
| 2005 | 35 | 69 |
| 2006 | 30 | 38 |
| 2007 | 16 | 44 |
| 2008 | 15 | 39 |
| 2009 | 16 | 63 |
| 2010 | 29 | 72 |
| 2011 | 30 | 79 |
| 2012 | 36 | 43 |
| 2013 | 31 | 49 |
| 2014 | 20 | 43 |
| 2015 | 20 | 64 |
| 2016 | 31 | 35 |
| 2017 | 22 | 56 |
| 2018 | 37 | 64 |
| 2019 | 34 | 95 |
| 2020 | 51 | 121 |
| 2021 | 53 | 112 |
| 2022 | 51 | 119 |
| 2023 | 61 | 100 |
| 2024 | 77 | 64 |
| 2025 | 54 | 72 |
| 2026 | 39 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D01F 8/14With at least one polyester as constituent640
- D01F 8/06With at least one polyolefin as constituent528
- D01F 8/12With at least one polyamide as constituent332
- D01F 8/10With at least one other macromolecular compound obtained by reactions only involving150
- D01F 8/16With at least one other macromolecular compound obtained otherwise than by reactions114
- D01F 8/08With at least one polyacrylonitrile as constituent69
Recent patents
- Color-changing antibacterial nanofiber29 Sep 2026US 12,746,214 B2University of Manitoba
- 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
- Artificial leather and method for manufacturing the same22 Sep 2026US 12,742,285 B2Toray Industries, Inc.
- Woven/knitted fabric and garment containing same15 Sep 2026US 12,735,812 B2Toray Industries, Inc.
- Spun-bonded nonwoven fabric and sanitary material25 Aug 2026US 12,716,154 B2Mitsui Chemicals Asahi Life Materials Co., Ltd.
- High-temperature-resistant wear-resistant brush material and preparation method thereof8 Oct 2026US 2026/0308811 A1
- Artificial turf fiber with barrier layer8 Oct 2026US 2026/0308814 A1Polytex Sportbelage Produktions-GmbH
- Polypropylene (pp) - caco3 masterbatch in fibers24 Sep 2026US 2026/0286069 A1Omya International AG
- 3d printing electrospinning systems and methods24 Sep 2026US 2026/0286573 A1Board of Regents, The University of Texas System
- Core-sheath conjugate fiber and nonwoven fabric formed therefrom17 Sep 2026US 2026/0275583 A1TOYOBO MC Corporation
Most cited
By later US patents
- Drug releasing biodegradable fiber implant1,662US 6,596,296 B1Board of Regents, The University of Texas System · 2003
- Implantable fibers and medical articles1,319US 6,162,537 ASolutia Inc. · 2000
- Soft nonwoven fabric of filaments506US 5,108,820 AMitsui Petrochemical Industries, Ltd. · 1992
- Fibers and filters containing said fibers289US 5,069,970 AAllied-Signal Inc. · 1991
- Drug releasing biodegradable fiber for delivery of therapeutics270US 7,033,603 B2Board of Regents, The University of Texas · 2006