D04H 1/4334
Polyamides
D04H1/4334 (Polyamides) appears on 350 US grants and 382 published applications in this corpus.
Search patents in D04H- Granted patents
- 350
- Published applications
- 382
- Assignees
- 248
- Inventors
- 1,053
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 9 | 0 |
| 1996 | 12 | 0 |
| 1997 | 12 | 0 |
| 1998 | 13 | 0 |
| 1999 | 14 | 0 |
| 2000 | 15 | 0 |
| 2001 | 5 | 6 |
| 2002 | 8 | 13 |
| 2003 | 10 | 22 |
| 2004 | 10 | 20 |
| 2005 | 6 | 25 |
| 2006 | 3 | 23 |
| 2007 | 9 | 15 |
| 2008 | 4 | 14 |
| 2009 | 2 | 12 |
| 2010 | 5 | 21 |
| 2011 | 10 | 19 |
| 2012 | 12 | 3 |
| 2013 | 10 | 11 |
| 2014 | 5 | 8 |
| 2015 | 4 | 16 |
| 2016 | 7 | 9 |
| 2017 | 5 | 9 |
| 2018 | 3 | 10 |
| 2019 | 7 | 17 |
| 2020 | 9 | 27 |
| 2021 | 13 | 11 |
| 2022 | 8 | 21 |
| 2023 | 10 | 10 |
| 2024 | 12 | 21 |
| 2025 | 7 | 9 |
| 2026 | 4 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Breathable and waterproof cloth and manufacturing method thereof15 Sep 2026US 12,734,783 B2Taiwan Textile Research Institute
- High-porosity nanofiber nonwovens as a support structure for stromal tissue28 Jul 2026US 12,691,203 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Nonwoven and absorbent articles containing the same5 May 2026US 12,616,619 B2The Procter & Gamble Company
- Separator containing para-aramid fibers, and electrochemical device including the same3 Mar 2026US 12,567,650 B2Dupont Safety & Construction, Inc.
- Transparent composite nano-fibre based multi-layer textile4 Nov 2025US 12,458,915 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Artificial leather base material, and artificial leather base material manufacturing method6 Aug 2026US 2026/0226674 A1Kuraray Co., Ltd.
- 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
- Shock pad for synthetic turf and methods of making same2 Jul 2026US 2026/0185308 A1Columbia Insurance Company
- Polymeric nonwoven structure for use in high temperature applications28 May 2026US 2026/0145405 A1Zephyros, Inc.
Most cited
By later US patents
- Multicomponent apertured nonwoven341US 6,632,504 B1BBA Nonwovens Simpsonville, Inc. · 2003
- Fine denier fibers and fabrics made therefrom231US 5,759,926 AKimberly-Clark Worldwide, Inc. · 1998
- Degradable polymer fibers; preparation product; and, methods of use134US 6,506,873 B1Cargill, Incorporated · 2003
- Thermoplastic polymer blends and nonwoven webs prepared therefrom120US 4,806,598 AKimberly-Clark Corporation · 1989
- Formaldhyde-free compositions for nonwovens113US 5,932,689 ARohm and Haas Company · 1999