A61F 2013/530934
Having a density gradient
Official title: {having a density gradient}
A61F2013/530934 (Having a density gradient) appears on 99 US grants and 24 published applications in this corpus.
Search patents in A61F- Granted patents
- 99
- Published applications
- 24
- Assignees
- 23
- Inventors
- 190
- Latest grant
- 6 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 17 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 14 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 5 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 3 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Absorbent article6 Feb 2024US 11,890,176 B2Daio Paper Corporation
- Absorbent members having skewed density profile13 Sep 2016US 9,439,815 B2The Procter & Gamble Company
- Absorbent article and manufacturing apparatus for absorbent article16 Dec 2014US 8,912,384 B2Unicharm Corporation
- Composite article suitable for use as a wound dressing11 Jun 2013US 8,460,698 B2Milliken & Company
- Composite article suitable for use as a wound dressing4 Jun 2013US 8,454,990 B2Milliken & Company
- Absorbent articles and methods of making7 Nov 2024US 2024/0366437 A1
- Absorbent article29 Oct 2020US 2020/0337911 A1Daio Paper Corporation
- Incontinence liner23 May 2013US 2013/0131623 A1Unicharm Corporation
- Absorbent Members Having Skewed Density Profile1 Nov 2012US 2012/0277709 A1The Procter & Gamble Company
- Absorbent article and manufacturing apparatus for absorbent article25 Oct 2012US 2012/0271268 A1Unicharm Corporation
Most cited
By later US patents
- Absorbent article having a hydrophobic transport layer802US 4,798,603 AKimberly-Clark Corporation · 1989
- Absorbent articles with rapid acquiring absorbent cores377US 4,988,345 AThe Procter & Gamble Company · 1991
- Absorbent structure having improved fluid surge management and product incorporating same271US 5,364,382 AKimberly-Clark Corporation · 1994
- Non-layered absorbent insert having Z-directional superabsorbent concentration gradient226US 4,699,823 AKimberly-Clark Corporation · 1987
- Absorbent article having rapid acquiring, multiple layer absorbent core223US 5,439,458 AThe Procter & Gamble Company · 1995