A61F 13/532
Inhomogeneous in the plane of the pad
Official title: inhomogeneous in the plane of the pad
A61F13/532 (Inhomogeneous in the plane of the pad) appears on 965 US grants and 1,024 published applications in this corpus.
Search patents in A61F- Granted patents
- 965
- Published applications
- 1,024
- Assignees
- 158
- Inventors
- 1,430
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 14 | 0 |
| 1993 | 5 | 0 |
| 1994 | 19 | 0 |
| 1995 | 18 | 0 |
| 1996 | 17 | 0 |
| 1997 | 27 | 0 |
| 1998 | 26 | 0 |
| 1999 | 32 | 0 |
| 2000 | 18 | 0 |
| 2001 | 14 | 9 |
| 2002 | 43 | 29 |
| 2003 | 30 | 51 |
| 2004 | 24 | 41 |
| 2005 | 19 | 33 |
| 2006 | 9 | 46 |
| 2007 | 13 | 29 |
| 2008 | 9 | 27 |
| 2009 | 11 | 15 |
| 2010 | 27 | 40 |
| 2011 | 13 | 22 |
| 2012 | 26 | 44 |
| 2013 | 24 | 39 |
| 2014 | 34 | 44 |
| 2015 | 36 | 72 |
| 2016 | 31 | 58 |
| 2017 | 48 | 62 |
| 2018 | 29 | 42 |
| 2019 | 38 | 65 |
| 2020 | 47 | 66 |
| 2021 | 54 | 41 |
| 2022 | 37 | 42 |
| 2023 | 24 | 30 |
| 2024 | 35 | 39 |
| 2025 | 24 | 26 |
| 2026 | 17 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Absorbent article with improved capillary acceleration sheet6 Oct 2026US 12,751,869 B2Drylock Technologies NV
- Absorbent body for use in an absorbent article18 Aug 2026US 12,708,570 B2Kimberly-Clark Worldwide, Inc.
- Absorbent article with reduced absorbent core7 Jul 2026US 12,672,988 B2Drylock Technologies NV
- Absorbent composite, an absorbent article employing the same, and methods, systems, and apparatus for making the absorbent composite and/or article23 Jun 2026US 12,661,278 B2DSG Technology Holdings Ltd.
- Absorbent articles with different types of channels23 Jun 2026US 12,661,280 B2The Procter & Gamble Company
- Method for manufacturing absorbent body3 Sep 2026US 2026/0256628 A1Zuiko Corporation
- Absorbent article27 Aug 2026US 2026/0248662 A1Sumitomo Seika Chemicals Co., Ltd.
- Absorbent article20 Aug 2026US 2026/0240694 A1The Procter & Gamble Company
- 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
Most cited
By later US patents
- High density absorbent members having lower density and lower basis weight acquisition zones1,072US 4,834,735 AThe Proctor & Gamble Company · 1989
- High efficiency absorbent articles for incontinence management776US 5,147,345 AThe Procter & Gamble Company · 1992
- Absorbent foam materials for aqueous body fluids and absorbent articles containing such materials745US 5,260,345 AThe Procter & Gamble Company · 1993
- Absorbent structure385US 5,149,335 AKimberly-Clark Corporation · 1992
- Stabilization of vanadium tetrachloride373US 4,808,387 AExxon Chemical Patents Inc. · 1989