A61F 2013/4587
With channels or deep spot depressions on the upper surface
Official title: {with channels or deep spot depressions on the upper surface (A61F13/4704 and A61F13/49001 take precedence)}
A61F2013/4587 (With channels or deep spot depressions on the upper surface) appears on 77 US grants and 82 published applications in this corpus.
Search patents in A61F- Granted patents
- 77
- Published applications
- 82
- Assignees
- 25
- Inventors
- 164
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 4 |
| 2014 | 3 | 3 |
| 2015 | 4 | 9 |
| 2016 | 4 | 21 |
| 2017 | 4 | 11 |
| 2018 | 2 | 7 |
| 2019 | 7 | 5 |
| 2020 | 7 | 6 |
| 2021 | 8 | 2 |
| 2022 | 1 | 3 |
| 2023 | 3 | 1 |
| 2024 | 3 | 3 |
| 2025 | 3 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Absorbent cores comprising a superabsorbent polymer immobilizing material26 May 2026US 12,636,205 B2The Procter & Gamble Company
- Multi-layer absorbent cores and methods of manufacture19 Aug 2025US 12,390,376 B2Kimberly-Clark Worldwide, Inc.
- Absorbent article with a channel-forming area and a masking layer20 May 2025US 12,303,370 B2The Procter & Gamble Company
- Absorbent articles having channel-forming areas and wetness indicator18 Feb 2025US 12,226,292 B2The Procter & Gamble Company
- Disposable hygienic article with means for diagnostic testing2 Jul 2024US 12,023,228 B2Medline Industries, Inc.
- Multi-layer absorbent cores and methods of manufacture13 Nov 2025US 2025/0345215 A1Kimberly-Clark Worldwide, Inc.
- Absorbent article with a channel-forming area and a masking layer24 Jul 2025US 2025/0235359 A1The Procter & Gamble Company
- Quick-drying absorption core19 Jun 2025US 2025/0195282 A1Mega Soft (China) Co., Ltd.
- Absorbent articles having channel-forming areas and wetness indicator8 May 2025US 2025/0143934 A1The Procter & Gamble Company
- Disposable hygienic article with means for diagnostic testing3 Oct 2024US 2024/0325211 A1Medline Industries, Inc.
Most cited
By later US patents
- Pocket-like diaper or absorbent article300US 5,176,672 AKimberly-Clark Corporation · 1993
- Sanitary napkin attachment means217US 4,608,047 APersonal Products Company · 1986
- Pocket-like diaper or absorbent article209US 5,462,541 AKimberly-Clark Corporation · 1995
- Absorbent structure having multiple canals194US 5,151,091 AMcNeil-PPC, Inc. · 1992
- Stretchable absorbent composite145US 4,891,258 AKimberly-Clark Corporation · 1990