A61F 13/51108
The top sheet having corrugations or embossments having one axis relatively longer
Official title: {the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal direction}
A61F13/51108 (The top sheet having corrugations or embossments having one axis relatively longer) appears on 170 US grants and 226 published applications in this corpus.
Search patents in A61F- Granted patents
- 170
- Published applications
- 226
- Assignees
- 41
- Inventors
- 331
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 4 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 8 |
| 2013 | 2 | 11 |
| 2014 | 2 | 7 |
| 2015 | 9 | 13 |
| 2016 | 11 | 30 |
| 2017 | 6 | 21 |
| 2018 | 12 | 19 |
| 2019 | 16 | 27 |
| 2020 | 19 | 24 |
| 2021 | 17 | 14 |
| 2022 | 10 | 8 |
| 2023 | 6 | 9 |
| 2024 | 16 | 10 |
| 2025 | 7 | 6 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Laminate webs and absorbent articles having the same17 Mar 2026US 12,575,980 B2The Procter & Gamble Company
- Absorbent article having channels10 Mar 2026US 12,569,374 B2Essity Hygiene and Health Aktiebolag
- Absorbent article10 Mar 2026US 12,569,377 B2Essity Hygiene and Health Aktiebolag
- Sanitary napkin for heavy uterine bleeding17 Feb 2026US 12,551,383 B2Grupo P.I. Mabe, S.A. De C.V.
- Shaped nonwoven16 Dec 2025US 12,496,238 B2The Procter & Gamble Company
- Absorbent article8 Oct 2026US 2026/0306311 A1Livedo Corporation
- Absorbent article with channels and method for manufacturing thereof6 Aug 2026US 2026/0224413 A1Drylock Techonologies NV
- Absorbent article with channels and method for manufacturing thereof25 Jun 2026US 2026/0174604 A1Drylock Technologies NV
- Zonal topsheet for an absorbent article18 Jun 2026US 2026/0165887 A1The Procter & Gamble Company
- Absorbent article with patterned active material21 May 2026US 2026/0138353 A1
Most cited
By later US patents
- Tufted fibrous web1,198US 7,682,686 B2The Procter & Gamble Company · 2010
- Disposable absorbent mat structure for removal and retention of wet and dry soil229US 4,614,679 AThe Procter & Gamble Company · 1986
- Die-cut contoured catamenial napkin of multi-layered construction216US 4,079,739 AKimberly-Clark Corporation · 1978
- Disposable diaper189US 4,892,528 AUni-Charm Corporation · 1990
- Channeled napkin with dry cover145US 4,624,666 APersonal Products Company · 1986