A61F 13/512
Characterised by its apertures
Official title: characterised by its apertures, e.g. perforations
A61F13/512 (Characterised by its apertures) appears on 787 US grants and 798 published applications in this corpus.
Search patents in A61F- Granted patents
- 787
- Published applications
- 798
- Assignees
- 126
- Inventors
- 1,254
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 11 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 20 | 0 |
| 1995 | 16 | 0 |
| 1996 | 19 | 0 |
| 1997 | 21 | 0 |
| 1998 | 18 | 0 |
| 1999 | 24 | 0 |
| 2000 | 22 | 0 |
| 2001 | 22 | 13 |
| 2002 | 19 | 25 |
| 2003 | 20 | 34 |
| 2004 | 13 | 35 |
| 2005 | 12 | 26 |
| 2006 | 17 | 12 |
| 2007 | 10 | 20 |
| 2008 | 6 | 21 |
| 2009 | 8 | 21 |
| 2010 | 16 | 23 |
| 2011 | 21 | 17 |
| 2012 | 22 | 17 |
| 2013 | 14 | 9 |
| 2014 | 13 | 18 |
| 2015 | 15 | 50 |
| 2016 | 17 | 51 |
| 2017 | 23 | 43 |
| 2018 | 19 | 53 |
| 2019 | 33 | 62 |
| 2020 | 41 | 59 |
| 2021 | 42 | 31 |
| 2022 | 29 | 32 |
| 2023 | 23 | 22 |
| 2024 | 42 | 52 |
| 2025 | 37 | 27 |
| 2026 | 19 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61F 13/5123The apertures being formed on a multilayer top sheet182
- A61F 13/5126Characterised by the planar distribution of the apertures115
- A61F 13/5121Characterised by the vertical shape of the apertures110
- A61F 2013/5127Characterized by the dimension of aperturesIndexing code82
- A61F 2013/5128Characterized by open targets or acquisitions or vulnerability zonesIndexing code53
Recent patents
- Non-invasive apparatuses for mitigating pressure applied to a human body and associated systems and methods22 Sep 2026US 12,740,900 B2TurnCare, Inc.
- Formed film laminate for absorbent articles18 Aug 2026US 12,708,571 B2Fitesa Film Products LLC
- Multi-layered non-woven structure for use as a component of disposable absorbent articles7 Jul 2026US 12,672,987 B2Twe Meulebeke
- Articles with zoned apertured materials and registration methods30 Jun 2026US 12,667,500 B2Kimberly-Clark Worldwide, Inc.
- Three-dimensional nonwoven materials and methods of manufacturing thereof30 Jun 2026US 12,667,502 B2Kimberly-Clark Worldwide, Inc.
- Patterned Apertured Webs8 Oct 2026US 2026/0306312 A1The Procter & Gamble Company
- Pressure-mitigating surfaces with inflatable chambers and methods for deploying and controlling the same1 Oct 2026US 2026/0294698 A1TurnCare, Inc.
- Three-dimensional nonwoven materials and methods of manufacturing thereof24 Sep 2026US 2026/0283866 A1Kimberly-Clark Worldwide, Inc.
- Absorbent article with improved laminate topsheet10 Sep 2026US 2026/0263293 A1The Procter & Gamble Company
- Absorbent articles with absorbent chassis and belt bonding arrangements and frangible pathways3 Sep 2026US 2026/0256629 A1The Procter & Gamble Company
Most cited
By later US patents
- Wound dressing with conformable elastomeric wound contact layer1,263US 5,445,604 ASmith and Nephew Associated Companies Limited · 1995
- Absorbent article having a hydrophobic transport layer802US 4,798,603 AKimberly-Clark Corporation · 1989
- Resilient plastic web exhibiting fiber-like properties732US 4,342,314 AThe Procter & Gamble Company · 1982
- Absorbent article having elastic strands672US 4,892,536 AThe Procter & Gamble Company · 1990
- Trisection topsheets for disposable absorbent articles and disposable absorbent articles having such trisection topsheets643US 5,269,775 AThe Procter & Gamble Company · 1993