D01F 6/605
From aromatic polyamides
Official title: {from aromatic polyamides}
D01F6/605 (From aromatic polyamides) appears on 243 US grants and 169 published applications in this corpus.
Search patents in D01F- Granted patents
- 243
- Published applications
- 169
- Assignees
- 95
- Inventors
- 566
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 9 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 11 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 5 |
| 2006 | 0 | 3 |
| 2007 | 0 | 3 |
| 2008 | 3 | 4 |
| 2009 | 3 | 14 |
| 2010 | 9 | 14 |
| 2011 | 7 | 11 |
| 2012 | 4 | 6 |
| 2013 | 9 | 13 |
| 2014 | 7 | 3 |
| 2015 | 4 | 7 |
| 2016 | 3 | 8 |
| 2017 | 8 | 8 |
| 2018 | 4 | 10 |
| 2019 | 8 | 4 |
| 2020 | 8 | 12 |
| 2021 | 4 | 8 |
| 2022 | 4 | 5 |
| 2023 | 5 | 8 |
| 2024 | 6 | 11 |
| 2025 | 5 | 5 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Para-aramid staple fiber, aramid spun yarn and manufacturing method threof22 Sep 2026US 12,742,260 B2Kolon Industries, Inc.
- Method and device for preparing modified poly (m-phenylene isophthalamide) (PMIA) fiber by continuous polymerization-dry-wet spinning1 Sep 2026US 12,723,329 B2Zhuzhou Times New Material Technology Co., Ltd.
- Aramid nanofiber filaments and related methods14 Jul 2026US 12,680,197 B2The Regents of the University of Michigan
- Carbon-based composite materials with enhanced dynamic performance19 May 2026US 12,630,429 B2Wisconsin Alumni Research Foundation
- High-elongation meta-aramid fiber, preparation method and apparatus30 Dec 2025US 12,509,803 B2Tayho Advanced Materials Group Co., Ltd.
- Cord and method for manufacturing the same24 Sep 2026US 2026/0286604 A1Kolon Industries, Inc.
- Immersed rotary jet spinning devices (irjs) and uses thereof3 Sep 2026US 2026/0258581 A1President and Fellows of Harvard College
- Polymeric fiber materials for thermal and mechanical protection and methods of making28 May 2026US 2026/0146370 A1President and Fellows of Harvard College
- Preparation of ultrafine polyimide nanofiber membrane at high voltage and use of membrane in high-temperature filtration2 Apr 2026US 2026/0092402 A1University of South China
- Methods for the dispersion processing of high aspect ratio nanomaterials, such as boron nitride nanotubes, into macrostructures20 Nov 2025US 2025/0353973 A1Georgia Tech Research Corporation
Most cited
By later US patents
- Wet spinning process for aramid polymer containing salts106US 5,667,743 AE. I. Du Pont de Nemours and Company · 1997
- Aromatic polyamide fibers and process for stabilizing such fibers with surfactants47US 4,668,234 AE. I. Du Pont de Nemours and Company · 1987
- Process for preparing subdenier fibers, pulp-like short fibers, fibrids, rovings and mats from isotropic polymer solutions42US 5,296,286 AE. I. Du Pont de Nemours and Company · 1994
- Highly oriented aromatic polyamide short fiber39US 4,511,623 AKorea Advanced Institute of Science and Technology, 200-43 · 1985
- Method of improving impregnation of poly (meta-phenylene isophthalamide) fibers35US 4,755,335 AE. I. Du Pont de Nemours and Company · 1988