A61K 8/8152
Homopolymers or copolymers of esters
Official title: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers}
A61K8/8152 (Homopolymers or copolymers of esters) appears on 2,248 US grants and 3,275 published applications in this corpus.
Search patents in A61K- Granted patents
- 2,248
- Published applications
- 3,275
- Assignees
- 710
- Inventors
- 5,423
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 8 | 0 |
| 1978 | 15 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 8 | 0 |
| 1988 | 11 | 0 |
| 1989 | 20 | 0 |
| 1990 | 7 | 0 |
| 1991 | 23 | 0 |
| 1992 | 24 | 0 |
| 1993 | 13 | 0 |
| 1994 | 10 | 0 |
| 1995 | 25 | 0 |
| 1996 | 25 | 0 |
| 1997 | 72 | 0 |
| 1998 | 41 | 0 |
| 1999 | 72 | 0 |
| 2000 | 69 | 0 |
| 2001 | 72 | 27 |
| 2002 | 68 | 63 |
| 2003 | 45 | 108 |
| 2004 | 30 | 116 |
| 2005 | 25 | 138 |
| 2006 | 35 | 113 |
| 2007 | 24 | 87 |
| 2008 | 29 | 103 |
| 2009 | 21 | 99 |
| 2010 | 38 | 104 |
| 2011 | 40 | 99 |
| 2012 | 55 | 93 |
| 2013 | 66 | 129 |
| 2014 | 74 | 137 |
| 2015 | 90 | 185 |
| 2016 | 72 | 198 |
| 2017 | 117 | 208 |
| 2018 | 108 | 201 |
| 2019 | 122 | 196 |
| 2020 | 148 | 184 |
| 2021 | 105 | 163 |
| 2022 | 104 | 152 |
| 2023 | 77 | 116 |
| 2024 | 68 | 115 |
| 2025 | 68 | 79 |
| 2026 | 41 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cosmetic and dermatological compositions6 Oct 2026US 12,751,904 B2Northeastern University
- Aqueous emulsion based antiperspirant formulation22 Sep 2026US 12,740,934 B2Dow Global Technologies LLC
- Sunscreen formulation8 Sep 2026US 12,728,081 B2Fallien Cosmeceuticals, Ltd.
- Phosphonates and N-halamines compositions for tartar removal1 Sep 2026US 12,721,800 B2Bar-Ilan University
- Oil-in-water emulsified cosmetic25 Aug 2026US 12,714,658 B2L V M H Recherche
- Aqueous Cosmetic Composition Comprising a Fatty Acid Monoester, a Neutralized Anionic Surfactant, a VP/Eicosene Copolymer, a Semicrystalline Polymer, a Latex, a Filler and a Polyol24 Sep 2026US 2026/0283919 A1L'oreal
- Aqueous composition for body17 Sep 2026US 2026/0272813 A1Kao Corporation
- Colorant composition for dyeing keratin fibers and dye kit containing the same10 Sep 2026US 2026/0263341 A1L'oreal
- Composition comprising skin care active ingredient or cellulose compound3 Sep 2026US 2026/0256672 A1L'oreal
- Aqueous liquid cosmetic3 Sep 2026US 2026/0256677 A1Mitsubishi Pencil Company, Limited
Most cited
By later US patents
- Amphoteric compositions and polymeric forms of alpha hydroxyacids, and their therapeutic use354US 5,091,171 A1992
- Facial cleansing compositions267US 5,011,681 ARichardson-Vicks Inc. · 1991
- Cosmetic composition for treating keratin fibres, and process for treating the latter231US 5,089,252 AL'oreal · 1992
- Fast dissolving orally comsumable films222US 6,596,298 B2Warner-Lambert Company · 2003
- Cosmestic compositions containing a cationic polymer and an anionic polymer as thickening agent215US 4,839,166 AL'oreal · 1989