A61F 2013/51355
For improving fluid flow
Official title: {for improving fluid flow}
A61F2013/51355 (For improving fluid flow) appears on 126 US grants and 126 published applications in this corpus.
Search patents in A61F- Granted patents
- 126
- Published applications
- 126
- Assignees
- 41
- Inventors
- 256
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 5 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 3 | 2 |
| 2008 | 1 | 4 |
| 2009 | 2 | 5 |
| 2010 | 6 | 5 |
| 2011 | 3 | 1 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 3 | 5 |
| 2015 | 3 | 10 |
| 2016 | 3 | 18 |
| 2017 | 7 | 10 |
| 2018 | 3 | 8 |
| 2019 | 8 | 12 |
| 2020 | 9 | 9 |
| 2021 | 8 | 3 |
| 2022 | 1 | 4 |
| 2023 | 5 | 3 |
| 2024 | 5 | 6 |
| 2025 | 3 | 2 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Absorbent composites1 Sep 2026US 12,721,756 B2Magnera Corporation
- Multi-layered non-woven structure for use as a component of disposable absorbent articles7 Jul 2026US 12,672,987 B2Twe Meulebeke
- Absorbent article26 May 2026US 12,636,203 B2Kimberly-Clark Worldwide, Inc.
- Feminine hygiene pad with differing functional arrangements of topsheet apertures12 May 2026US 12,622,820 B2The Procter & Gamble Company
- Absorbent article for liquid stool management12 May 2026US 12,622,822 B2Ontex BV
- Multi-layered non-woven structure for use as a component of disposable absorbent articles16 Jul 2026US 2026/0199148 A1Twe Meulebeke
- Diaper Cores4 Jun 2026US 2026/0151276 A1Freestyle World, Inc.
- Absorbent garment7 May 2026US 2026/0124082 A1Shenzhen Lute Jiacheng Supply Chain Management Co., Ltd.
- Nonwoven and absorbent articles having the same22 Jan 2026US 2026/0020994 A1The Procter & Gamble Company
- Non-woven fabric having stripe protrusions on surface, and absorption product thereof20 Nov 2025US 2025/0352407 A1Xiamen Yanjan New Material Co., Ltd.
Most cited
By later US patents
- Absorbent article having blended multi-layer absorbent structure with improved integrity271US 5,460,622 AThe Procter & Gamble Company · 1995
- Flow distribution system for absorbent pads220US 4,908,026 AKimberly-Clark Corporation · 1990
- Absorptive devices having porous backsheet197US 3,989,867 AThe Procter & Gamble Company · 1976
- Disposable absorbent article having an intermediate layer interposed between the topsheet and the absorbent core190US 4,323,069 AThe Procter & Gamble Company · 1982
- Absorbent article having blended absorbent core175US 5,681,300 AThe Procter & Gamble Company · 1997