A61F 13/15617
Making absorbent pads from fibres or pulverulent material with or without treatment
Official title: {Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres}
A61F13/15617 (Making absorbent pads from fibres or pulverulent material with or without treatment) appears on 818 US grants and 882 published applications in this corpus.
Search patents in A61F- Granted patents
- 818
- Published applications
- 882
- Assignees
- 203
- Inventors
- 1,453
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 17 | 0 |
| 1988 | 9 | 0 |
| 1989 | 6 | 0 |
| 1990 | 18 | 0 |
| 1991 | 12 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 13 | 0 |
| 1996 | 20 | 0 |
| 1997 | 10 | 0 |
| 1998 | 13 | 0 |
| 1999 | 17 | 0 |
| 2000 | 15 | 0 |
| 2001 | 14 | 7 |
| 2002 | 15 | 27 |
| 2003 | 29 | 60 |
| 2004 | 19 | 36 |
| 2005 | 13 | 31 |
| 2006 | 15 | 27 |
| 2007 | 19 | 18 |
| 2008 | 4 | 14 |
| 2009 | 6 | 16 |
| 2010 | 16 | 22 |
| 2011 | 12 | 27 |
| 2012 | 20 | 36 |
| 2013 | 24 | 38 |
| 2014 | 24 | 51 |
| 2015 | 28 | 58 |
| 2016 | 33 | 32 |
| 2017 | 31 | 52 |
| 2018 | 20 | 51 |
| 2019 | 35 | 55 |
| 2020 | 40 | 49 |
| 2021 | 50 | 31 |
| 2022 | 32 | 34 |
| 2023 | 21 | 29 |
| 2024 | 35 | 29 |
| 2025 | 23 | 30 |
| 2026 | 26 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61F 13/15658Forming continuous444
- A61F 13/15634Making fibrous pads between sheets or webs131
- A61F 13/15626Making fibrous pads without outer layers117
- A61F 13/15642By depositing continuous layers or pads of fibrous material on single sheets94
- A61F 13/1565By depositing continuous layers of fibrous material between webs60
Recent patents
- Flexible demolding device, core molding device, and core forming method22 Sep 2026US 12,740,896 B2Shanghai Zhilian Precision Machinery Co., Ltd.
- Absorbent cores and methods for forming absorbent cores22 Sep 2026US 12,740,897 B2Kimberly-Clark Worldwide, Inc.
- Multi-layer absorbent cores and methods of manufacture22 Sep 2026US 12,740,898 B2Kimberly-Clark Worldwide, Inc.
- Forming station for forming an absorbent core for disposable hygiene products25 Aug 2026US 12,714,611 B2Teknoweb Converting Srl
- Absorbent structure for sanitary articles, an absorbent sanitary article and a plaster comprising this absorbent structure11 Aug 2026US 12,702,598 B2Fameccanica. Data S.p.A.
- Non-woven of spunbonded thermoplastic filaments having improved weldability properties and method for manufacturing such a non-woven8 Oct 2026US 2026/0306698 A1Dounor SAS
- Method and apparatus for producing fluff-free absorbent cores17 Sep 2026US 2026/0272724 A1Fameccanica, Data S.P A.
- Composite absorbent material17 Sep 2026US 2026/0272729 A1The Procter & Gamble Company
- Shaped co-form absorbent cores and methods of making the same13 Aug 2026US 2026/0232496 A1The Procter & Gamble Company
- Absorbent article with channels and method for manufacturing thereof6 Aug 2026US 2026/0224413 A1Drylock Techonologies NV
Most cited
By later US patents
- See through absorbent dressing1,496US 5,018,515 AThe Kendall Company · 1991
- High-density absorbent structures1,161US 4,610,678 A1986
- Absorbent core having a dusting layer932US 4,888,231 AThe Procter & Gamble Company · 1989
- Elasticized disposable training pant and method of making the same809US 5,246,433 AThe Procter & Gamble Company · 1993
- Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer having high porosity637US 5,562,646 AThe Proctor & Gamble Company · 1996