D04H 1/54
By welding together the fibres
Official title: by welding together the fibres, e.g. by partially melting or dissolving (in combination with needling D04H1/485)
D04H1/54 (By welding together the fibres) appears on 2,544 US grants and 2,627 published applications in this corpus.
Search patents in D04H- Granted patents
- 2,544
- Published applications
- 2,627
- Assignees
- 1,034
- Inventors
- 5,680
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 12 | 0 |
| 1978 | 25 | 0 |
| 1979 | 12 | 0 |
| 1980 | 19 | 0 |
| 1981 | 16 | 0 |
| 1982 | 19 | 0 |
| 1983 | 23 | 0 |
| 1984 | 28 | 0 |
| 1985 | 22 | 0 |
| 1986 | 25 | 0 |
| 1987 | 25 | 0 |
| 1988 | 42 | 0 |
| 1989 | 50 | 0 |
| 1990 | 45 | 0 |
| 1991 | 32 | 0 |
| 1992 | 55 | 0 |
| 1993 | 46 | 0 |
| 1994 | 54 | 0 |
| 1995 | 77 | 0 |
| 1996 | 79 | 0 |
| 1997 | 96 | 0 |
| 1998 | 95 | 0 |
| 1999 | 85 | 0 |
| 2000 | 74 | 0 |
| 2001 | 65 | 36 |
| 2002 | 50 | 85 |
| 2003 | 76 | 120 |
| 2004 | 53 | 116 |
| 2005 | 43 | 113 |
| 2006 | 38 | 109 |
| 2007 | 23 | 83 |
| 2008 | 35 | 87 |
| 2009 | 32 | 97 |
| 2010 | 52 | 88 |
| 2011 | 59 | 88 |
| 2012 | 48 | 78 |
| 2013 | 56 | 101 |
| 2014 | 44 | 82 |
| 2015 | 48 | 89 |
| 2016 | 64 | 120 |
| 2017 | 50 | 114 |
| 2018 | 57 | 88 |
| 2019 | 72 | 111 |
| 2020 | 80 | 123 |
| 2021 | 65 | 119 |
| 2022 | 54 | 125 |
| 2023 | 79 | 135 |
| 2024 | 83 | 142 |
| 2025 | 76 | 99 |
| 2026 | 65 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- D04H 1/56In association with fibre formation994
- D04H 1/559The fibres being within layered webs592
- D04H 1/541Composite fibres477
- D04H 1/542Adhesive fibres408
- D04H 1/558In combination with mechanical or physical treatments other than embossing177
- D04H 1/555By ultrasonic heating44
- D04H 1/552By applying solvents or auxiliary agents23
- D04H 1/5405At spaced points or locations17
All 10 subgroupsShow fewer
Recent patents
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Most cited
By later US patents
- Nonwoven fabric and method of producing same1,280US 4,100,324 AKimberly-Clark Corporation · 1978
- Tufted fibrous web1,198US 7,682,686 B2The Procter & Gamble Company · 2010
- Melt-blown fibrous web1,019US 5,582,907 APall Corporation · 1996
- Polyolefin-containing extrudable compositions and methods for their formation into elastomeric products including microfibers991US 4,663,220 AKimberly-Clark Corporation · 1987
- Woven constructs with interlocked standing fibers858US 10,271,849 B2Ethicon, Inc. · 2019