A61F 13/539
Characterised by the connection of the absorbent layers with each other or
Official title: characterised by the connection of the absorbent layers with each other or with the outer layers
A61F13/539 (Characterised by the connection of the absorbent layers with each other or) appears on 1,029 US grants and 898 published applications in this corpus.
Search patents in A61F- Granted patents
- 1,029
- Published applications
- 898
- Assignees
- 216
- Inventors
- 1,820
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 6 | 0 |
| 1978 | 12 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 20 | 0 |
| 1983 | 10 | 0 |
| 1984 | 12 | 0 |
| 1985 | 21 | 0 |
| 1986 | 19 | 0 |
| 1987 | 15 | 0 |
| 1988 | 12 | 0 |
| 1989 | 19 | 0 |
| 1990 | 12 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 18 | 0 |
| 1994 | 27 | 0 |
| 1995 | 25 | 0 |
| 1996 | 34 | 0 |
| 1997 | 37 | 0 |
| 1998 | 32 | 0 |
| 1999 | 29 | 0 |
| 2000 | 19 | 0 |
| 2001 | 17 | 7 |
| 2002 | 12 | 15 |
| 2003 | 21 | 32 |
| 2004 | 16 | 33 |
| 2005 | 11 | 24 |
| 2006 | 9 | 32 |
| 2007 | 17 | 29 |
| 2008 | 13 | 15 |
| 2009 | 6 | 10 |
| 2010 | 19 | 22 |
| 2011 | 9 | 22 |
| 2012 | 18 | 38 |
| 2013 | 20 | 40 |
| 2014 | 23 | 44 |
| 2015 | 35 | 62 |
| 2016 | 25 | 50 |
| 2017 | 40 | 64 |
| 2018 | 21 | 52 |
| 2019 | 37 | 60 |
| 2020 | 40 | 67 |
| 2021 | 50 | 46 |
| 2022 | 32 | 43 |
| 2023 | 27 | 23 |
| 2024 | 37 | 30 |
| 2025 | 29 | 25 |
| 2026 | 16 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61F 2013/53908With adhesiveIndexing code385
- A61F 2013/5395With thermoplastic agent, i.e. softened by heatIndexing code270
- A61F 2013/53966By needling, sewing, blow-needlingIndexing code90
- A61F 2013/53975By hydraulic entanglementIndexing code50
- A61F 2013/53991By ultrasonic methodIndexing code24
- A61F 2013/53983With hook and loop-type fastener or the likeIndexing code19
Recent patents
- Absorbent composites1 Sep 2026US 12,721,756 B2Magnera Corporation
- Absorbent structure for sanitary articles and method for its production11 Aug 2026US 12,702,596 B2Fameccanica. Data S.p.A.
- Absorbent article with reduced absorbent core7 Jul 2026US 12,672,988 B2Drylock Technologies NV
- Absorbent article with improved channeled core and method of making30 Jun 2026US 12,667,499 B2Ontex BV
- Multi-layer absorbent cores and methods of manufacture23 Jun 2026US 12,661,277 B2Kimberly-Clark Worldwide, Inc.
- Wearing article and method of manufacturing same13 Aug 2026US 2026/0232497 A1Zuiko Corporation
- Absorbent article with improved core wrap13 Aug 2026US 2026/0232499 A1Drylock Technologies NV
- Absorbent article with channels and method for manufacturing thereof6 Aug 2026US 2026/0224413 A1Drylock Techonologies NV
- Absorbent Assembly30 Jul 2026US 2026/0215972 A1Essity Hygiene and Health Aktiebolag
- Absorbent sheet16 Jul 2026US 2026/0199149 A1Unicharm Corporation
Most cited
By later US patents
- Device for treatment of wounds in body tissue of patients by exposure to jets of gas1,339US 4,608,041 A1986
- Disposable incontinence garment or training pant1,298US 4,940,464 AKimberly-Clark Corporation · 1990
- Wound dressing with conformable elastomeric wound contact layer1,263US 5,445,604 ASmith and Nephew Associated Companies Limited · 1995
- Absorbent article with dynamic elastic waist feature having a predisposed resilient flexural hinge1,158US 5,151,092 AThe Procter & Gamble Company · 1992
- Absorbant laminates and method of making same805US 5,667,864 A1997