A61K 8/0233
Distinct layers
Official title: {Distinct layers, e.g. core/shell sticks}
A61K8/0233 (Distinct layers) appears on 179 US grants and 304 published applications in this corpus.
Search patents in A61K- Granted patents
- 179
- Published applications
- 304
- Assignees
- 112
- Inventors
- 627
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 1 | 7 |
| 2003 | 6 | 4 |
| 2004 | 2 | 7 |
| 2005 | 1 | 10 |
| 2006 | 0 | 10 |
| 2007 | 3 | 11 |
| 2008 | 0 | 17 |
| 2009 | 2 | 8 |
| 2010 | 2 | 2 |
| 2011 | 3 | 4 |
| 2012 | 1 | 7 |
| 2013 | 4 | 15 |
| 2014 | 4 | 12 |
| 2015 | 7 | 10 |
| 2016 | 4 | 17 |
| 2017 | 13 | 17 |
| 2018 | 8 | 16 |
| 2019 | 11 | 13 |
| 2020 | 11 | 19 |
| 2021 | 8 | 20 |
| 2022 | 5 | 23 |
| 2023 | 13 | 17 |
| 2024 | 16 | 21 |
| 2025 | 15 | 8 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cosmetic product with surface decoration of dynamic images16 Jun 2026US 12,653,292 B2INTERCOS S. p. A.
- Solid cleansing composition presenting controlled disintegration16 Jun 2026US 12,653,762 B2Kenvue Brands LLC
- Calcium phosphate-based core-shell structured material, method for preparing the same, and oral care composition using the same7 Apr 2026US 12,595,175 B23D Global Biotech Inc.
- Laminate sheet for cosmetic, and cosmetic set24 Mar 2026US 12,582,581 B2Panasonic Intellectual Property Management Co., Ltd.
- Oral articles and methods of use24 Feb 2026US 12,558,305 B2Solventum Intellectual Properties Company
- Self-adhesive patches made of fibres for the controlled release of bioactives3 Sep 2026US 2026/0256711 A1Bionanopharma S.L.
- Matrix type hyrogel patch for toenail care25 Jun 2026US 2026/0174709 A1
- Dissolvable solid structure having first and second layers11 Jun 2026US 2026/0159683 A1The Procter & Gamble Company
- Oral preparation comprising chicory dietary fiber or cassava starch16 Apr 2026US 2026/0102355 A1LG H&H Co., Ltd.
- Multilayer dissolvable solid article containing solid particles for making the same29 Jan 2026US 2026/0028560 A1The Procter & Gamble Company
Most cited
By later US patents
- Three phase antiperspirant stick108US 4,202,879 AThe Procter & Gamble Company · 1980
- Two phase antiperspirant compositions99US 4,120,948 AThe Procter & Gamble Company · 1978
- Personal care composition containing a cleansing phase and a benefit phase75US 7,531,497 B2The Procter & Gamble Company · 2009
- Detergent compositions containing separate stripes of surface active agents and benefit agent72US 5,612,307 ALever Brothers Company, Division of Conopco, Inc. · 1997
- Gel toothpastes71US 3,980,767 ABeecham Group Limited · 1976