D04H 1/4342
Aromatic polyamides
D04H1/4342 (Aromatic polyamides) appears on 129 US grants and 134 published applications in this corpus.
Search patents in D04H- Granted patents
- 129
- Published applications
- 134
- Assignees
- 90
- Inventors
- 369
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 5 |
| 2003 | 3 | 3 |
| 2004 | 1 | 7 |
| 2005 | 3 | 12 |
| 2006 | 0 | 10 |
| 2007 | 3 | 4 |
| 2008 | 2 | 7 |
| 2009 | 1 | 3 |
| 2010 | 2 | 7 |
| 2011 | 4 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 8 |
| 2014 | 2 | 5 |
| 2015 | 2 | 11 |
| 2016 | 5 | 4 |
| 2017 | 3 | 3 |
| 2018 | 1 | 3 |
| 2019 | 4 | 6 |
| 2020 | 5 | 10 |
| 2021 | 7 | 5 |
| 2022 | 0 | 7 |
| 2023 | 3 | 3 |
| 2024 | 4 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separator containing para-aramid fibers, and electrochemical device including the same3 Mar 2026US 12,567,650 B2Dupont Safety & Construction, Inc.
- Flame-retardant fiber composite and flame-retardant working clothes19 Nov 2024US 12,144,389 B2Kaneka Corporation
- Synthetic leather and covered article9 Apr 2024US 11,952,712 B2Toray Industries, Inc.
- Electrospun nanofibers19 Mar 2024US 11,932,970 B2
- Synthetic leather and coated article19 Mar 2024US 11,932,987 B2Toray Industries, Inc.
- Lightweight, flame resistant fabrics protective against arc flash and thermal performance30 Jul 2026US 2026/0216992 A1National Safety Apparel, Inc.
- Non-Woven Fabric16 Jul 2026US 2026/0201615 A1Asahi Kasei Kabushiki Kaisha
- Aerogel composition for thermal insulation26 Mar 2026US 2026/0085457 A1Cabot Corporation
- Papers Having High Average Specific Modulus and Ultimate Tensile Strength19 Feb 2026US 2026/0049422 A1Dupont Safety & Construction, Inc.
- Canine socks with multi-purpose protective construction28 Nov 2024US 2024/0389554 A1
Most cited
By later US patents
- Formaldhyde-free compositions for nonwovens113US 5,932,689 ARohm and Haas Company · 1999
- Non-woven heating element108US 4,534,886 AInternational Paper Company · 1985
- High pressure high temperature cushioning material96US 5,691,036 ADu Pont Taiwan Limited · 1997
- Process for the production of mouldings and films from thermotropic polymers89US 4,923,660 A1990
- Non-woven fibrous product containing natural fibers84US 5,272,000 AGuardian Industries Corp. · 1993