D01F 6/805
From aromatic copolyamides
Official title: {from aromatic copolyamides}
D01F6/805 (From aromatic copolyamides) appears on 74 US grants and 74 published applications in this corpus.
Search patents in D01F- Granted patents
- 74
- Published applications
- 74
- Assignees
- 28
- Inventors
- 167
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 10 |
| 2010 | 2 | 6 |
| 2011 | 3 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 6 |
| 2014 | 5 | 8 |
| 2015 | 3 | 13 |
| 2016 | 7 | 0 |
| 2017 | 9 | 4 |
| 2018 | 5 | 8 |
| 2019 | 6 | 2 |
| 2020 | 0 | 1 |
| 2021 | 0 | 3 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Continuous process for recycling11 Nov 2025US 12,467,162 B2Teijin Aramid B.V.
- Semi-aromatic polyamide fiber and method for producing same16 Jul 2024US 12,037,715 B2Kuraray Co., Ltd.
- Aramid copolymer yarn having low residual sulfur22 Mar 2022US 11,279,800 B2Dupont Safety & Construction, Inc.
- Sulfur-containing imidazole fiber having ionically bonded halides3 Sep 2019US 10,400,082 B2E. I. Du Pont de Nemours and Company
- Sulfur and alkali metal containing imidazole fiber having ionically bound halides3 Sep 2019US 10,400,357 B2E. I. Du Pont de Nemours and Company
- Resin sheet and resin molding18 Sep 2025US 2025/0290232 A1Maxell, Ltd.
- Hexavalent substituted benzenes8 May 2025US 2025/0145767 A1Northeastern University
- Heat-resistant high-toughness fiber, production method thereof, and heat-resistant high-toughness film26 Sep 2024US 2024/0318359 A1Teijin Limited
- Filament, material, and method for producing the material14 Dec 2023US 2023/0399772 A1Mitsubishi Gas Chemical Company, Inc.
- Resin sheet and resin molding13 Apr 2023US 2023/0112317 A1Maxell, Ltd.
Most cited
By later US patents
- Two-component loop yarns comprising aramid filaments, manufacture thereof and use thereof45US 5,645,935 AHoechst Trevira GmbH & Co. KG · 1997
- Novel aromatic copolyamides prepared from 3,4' diphenylene type diamines, and shaped articles therefrom35US 4,075,172 ATeijin Limited · 1978
- Aromatic copolyamides, production thereof, formed structures and production thereof31US 5,571,891 AHoechst Aktiengesellschaft · 1996
- Production of fibers or films using specific forming solutions and the fibers of films obtainable thereby23US 5,646,234 AHoechst Aktiengesellschaft · 1997
- Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophthalamide16US 5,093,464 AKorea Institute of Science and Technology · 1992