D04H 1/549
Polyamides
D04H1/549 (Polyamides) appears on 49 US grants and 37 published applications in this corpus.
Search patents in D04H- Granted patents
- 49
- Published applications
- 37
- Assignees
- 39
- Inventors
- 136
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 5 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 2 |
| 2012 | 0 | 3 |
| 2013 | 2 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 2 |
| 2021 | 2 | 4 |
| 2022 | 0 | 4 |
| 2023 | 0 | 0 |
| 2024 | 3 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Paper machine clothing and method30 Jun 2026US 12,668,924 B2Voith Patent GmbH
- Nonwoven fabric for skin care products, face mask, and cleansing sheet24 Dec 2024US 12,171,846 B2Toray Industries, Inc.
- Space filling material and space filling structure, and methods for using those8 Oct 2024US 12,109,742 B2Kuraray Co., Ltd.
- Functional nonwoven scrim for high temperature applications requiring low flammability, smoke, and toxicity20 Feb 2024US 11,905,633 B2Zephyros, Inc.
- Shock pad for synthetic turf and methods for making same28 Sep 2021US 11,131,068 B2Columbia Insurance Company
- Shock pad for synthetic turf and methods of making same2 Jul 2026US 2026/0185308 A1Columbia Insurance Company
- Paper machine clothing and method1 Sep 2022US 2022/0275580 A1Voith Patent GmbH
- Dermal patch4 Aug 2022US 2022/0241115 A1Carl Freudenberg KG
- Shock Pad for Synthetic Turf and Methods for Making Same17 Feb 2022US 2022/0049435 A1Columbia Insurance Company
- Nonwoven fabric for skin care products, face mask, and cleansing sheet10 Feb 2022US 2022/0040050 A1Toray Industries, Inc.
Most cited
By later US patents
- Fibrous structures containing immobilized particulate matter181US 5,486,410 AHoechst Celanese Corporation · 1996
- Ribbed clothlike nonwoven fabric168US 5,620,779 AKimberly-Clark Corporation · 1997
- Fibrous structures containing particulate and including microfiber web102US 5,605,746 AHoechst Celanese Corporation · 1997
- Nonwoven fabrics and fabric laminates from multiconstituent fibers81US 5,593,768 AFiberweb North America, Inc. · 1997
- Fibrous product59US 4,068,036 AImperial Chemical Industries PLC · 1978