A61F 2013/530569
Characterized by the particle size
Official title: {characterized by the particle size}
A61F2013/530569 (Characterized by the particle size) appears on 131 US grants and 75 published applications in this corpus.
Search patents in A61F- Granted patents
- 131
- Published applications
- 75
- Assignees
- 29
- Inventors
- 276
- Latest grant
- 10 Feb 2026
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 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 18 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 6 | 5 |
| 2003 | 5 | 3 |
| 2004 | 1 | 5 |
| 2005 | 3 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 3 |
| 2011 | 0 | 4 |
| 2012 | 1 | 3 |
| 2013 | 1 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 6 |
| 2016 | 3 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 4 |
| 2021 | 2 | 4 |
| 2022 | 0 | 13 |
| 2023 | 1 | 3 |
| 2024 | 7 | 3 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
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 sheet10 Feb 2026US 12,544,278 B2Drylock Technologies NV
- Water-absorbing resin particles and absorbent article11 Mar 2025US 12,246,303 B2Sumitomo Seika Chemicals Co., Ltd.
- Absorbent article4 Mar 2025US 12,239,516 B2Daio Paper Corporation
- Absorbent structure comprising co-formed layer14 Jan 2025US 12,193,923 B2The Procter & Gamble Company
- Water-absorbent resin particles, water-absorbent article, and method for manufacturing same10 Dec 2024US 12,161,537 B2Sumitomo Seika Chemicals Co., Ltd.
- Absorbent article with improved capillary acceleration sheet14 May 2026US 2026/0130804 A1Drylock Technologies NV
- Absorber7 Nov 2024US 2024/0366826 A1Sumitomo Seika Chemicals Co., Ltd.
- Porous sheet product and methods for making and using the same6 Jun 2024US 2024/0181122 A1
- Water-absorbent resin, absorbent body and absorbent article30 May 2024US 2024/0173694 A1Sumitomo Seika Chemicals Co., Ltd.
- Absorbent article with improved capillary acceleration sheet21 Dec 2023US 2023/0404822 A1Drylock Technologies NV
Most cited
By later US patents
- Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer having high porosity637US 5,562,646 AThe Proctor & Gamble Company · 1996
- Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer632US 5,599,335 AThe Procter & Gamble Company · 1997
- Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer500US 5,669,894 AThe Procter & Gamble Company · 1997
- Thin absorbent article having rapid uptake of liquid497US 5,509,915 AKimberly-Clark Corporation · 1996
- Absorbent products containing hydrogels with ability to swell against pressure400US 5,147,343 AKimberly-Clark Corporation · 1992