A61F 13/511
Topsheet, i.e. the permeable cover or layer facing the skin
A61F13/511 (Topsheet, i.e. the permeable cover or layer facing the skin) appears on 2,212 US grants and 2,323 published applications in this corpus.
Search patents in A61F- Granted patents
- 2,212
- Published applications
- 2,323
- Assignees
- 364
- Inventors
- 3,343
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 11 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 16 | 0 |
| 1983 | 14 | 0 |
| 1984 | 10 | 0 |
| 1985 | 16 | 0 |
| 1986 | 18 | 0 |
| 1987 | 23 | 0 |
| 1988 | 23 | 0 |
| 1989 | 22 | 0 |
| 1990 | 27 | 0 |
| 1991 | 29 | 0 |
| 1992 | 15 | 0 |
| 1993 | 31 | 0 |
| 1994 | 49 | 0 |
| 1995 | 54 | 0 |
| 1996 | 61 | 0 |
| 1997 | 68 | 0 |
| 1998 | 53 | 0 |
| 1999 | 49 | 0 |
| 2000 | 46 | 0 |
| 2001 | 49 | 22 |
| 2002 | 55 | 83 |
| 2003 | 62 | 83 |
| 2004 | 38 | 77 |
| 2005 | 23 | 70 |
| 2006 | 22 | 41 |
| 2007 | 29 | 54 |
| 2008 | 16 | 53 |
| 2009 | 28 | 39 |
| 2010 | 37 | 51 |
| 2011 | 36 | 48 |
| 2012 | 43 | 73 |
| 2013 | 47 | 59 |
| 2014 | 53 | 72 |
| 2015 | 61 | 123 |
| 2016 | 66 | 120 |
| 2017 | 60 | 132 |
| 2018 | 62 | 158 |
| 2019 | 74 | 177 |
| 2020 | 113 | 172 |
| 2021 | 121 | 125 |
| 2022 | 96 | 113 |
| 2023 | 91 | 103 |
| 2024 | 114 | 128 |
| 2025 | 90 | 78 |
| 2026 | 57 | 69 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61F 13/513Characterised by its function or properties969
- A61F 13/512Characterised by its apertures787
- A61F 13/51104The top sheet having a three-dimensional cross-section546
- A61F 13/51121Characterised by the material487
- A61F 13/5116Being formed of multiple layers465
- A61F 13/51113Comprising an additive247
- A61F 2013/51186Specially shaped topsheetsIndexing code74
Recent patents
- Personal hygiene product22 Sep 2026US 12,740,899 B2Croda International PLC
- Non-invasive apparatuses for mitigating pressure applied to a human body and associated systems and methods22 Sep 2026US 12,740,900 B2TurnCare, Inc.
- Absorbent composites1 Sep 2026US 12,721,756 B2Magnera Corporation
- Elastomeric laminate(s) for absorbent article donning1 Sep 2026US 12,721,760 B2The Procter & Gamble Company
- Formed film laminate for absorbent articles18 Aug 2026US 12,708,571 B2Fitesa Film Products LLC
- Elastomeric laminate(s) for absorbent article donning8 Oct 2026US 2026/0306309 A1The Procter & Gamble Company
- Absorbent article8 Oct 2026US 2026/0306311 A1Livedo Corporation
- Patterned Apertured Webs8 Oct 2026US 2026/0306312 A1The Procter & Gamble Company
- Absorbent article having a waist gasketing element1 Oct 2026US 2026/0294693 A1The Procter & Gamble Company
- Pressure-mitigating surfaces with inflatable chambers and methods for deploying and controlling the same1 Oct 2026US 2026/0294698 A1TurnCare, Inc.
Most cited
By later US patents
- 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
- Tufted fibrous web1,198US 7,682,686 B2The Procter & Gamble Company · 2010
- Bandage apparatus for treating burns1,162US 4,139,004 A1979
- Thin-unit-wet absorbent foam materials for aqueous body fluids and process for making same1,130US 5,387,207 AThe Procter & Gamble Company · 1995