A61K 8/87
Polyurethanes
A61K8/87 (Polyurethanes) appears on 736 US grants and 1,089 published applications in this corpus.
Search patents in A61K- Granted patents
- 736
- Published applications
- 1,089
- Assignees
- 289
- Inventors
- 1,872
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 13 | 0 |
| 1998 | 13 | 0 |
| 1999 | 20 | 0 |
| 2000 | 26 | 0 |
| 2001 | 35 | 9 |
| 2002 | 37 | 39 |
| 2003 | 31 | 43 |
| 2004 | 19 | 52 |
| 2005 | 9 | 41 |
| 2006 | 14 | 26 |
| 2007 | 14 | 26 |
| 2008 | 12 | 38 |
| 2009 | 6 | 26 |
| 2010 | 19 | 25 |
| 2011 | 6 | 43 |
| 2012 | 13 | 25 |
| 2013 | 20 | 45 |
| 2014 | 23 | 47 |
| 2015 | 16 | 52 |
| 2016 | 14 | 51 |
| 2017 | 45 | 71 |
| 2018 | 29 | 82 |
| 2019 | 30 | 71 |
| 2020 | 55 | 59 |
| 2021 | 43 | 51 |
| 2022 | 33 | 63 |
| 2023 | 26 | 32 |
| 2024 | 24 | 36 |
| 2025 | 26 | 21 |
| 2026 | 16 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sunscreen formulation8 Sep 2026US 12,728,081 B2Fallien Cosmeceuticals, Ltd.
- Composition with non-silicone elastomer and pasty fatty substance1 Sep 2026US 12,721,803 B2Lvmh Recherche
- Cosmetic composition comprising an amino silicone, a non-amino silicone and a non-ionic associative polymer, and cosmetic treatment process18 Aug 2026US 12,708,600 B2L'oreal
- Photocurable resin composition for nail or artificial nail, cured product, and method for coating nail or artificial nail28 Jul 2026US 12,691,053 B2Threebond Co., Ltd.
- Biodegradable polyurea/polyurethane microcapsules23 Jun 2026US 12,661,627 B2Symrise AG
- Artificial nail composition and artificial nail1 Oct 2026US 2026/0294782 A1Shofu Inc.
- Use of a composition comprising an alkyl or alkylene carbonate for removing the colour from previously dyed keratinous hair fibres without damaging the keratinous hair fibres27 Aug 2026US 2026/0248703 A1L'oreal
- Microcapsules13 Aug 2026US 2026/0234512 A1Iberchem S.A.U.
- Biodegradable microcapsules containing low log p fra-grance6 Aug 2026US 2026/0226377 A1International Flavors & Fragrances Inc.
- Bcma-specific antibody constructs and compositions thereof16 Jul 2026US 2026/0199217 A1L'oreal
Most cited
By later US patents
- Ionic semiconductor materials and applications thereof795US 5,055,171 AT and G Corporation · 1991
- Hydrophilic and hydrophobic polyether polyurethanes and uses therefor530US 5,993,972 ATyndale Plains-Hunter, Ltd. · 1999
- Hydrophilic or hydrogel carrier systems such as coatings, body implants and other articles353US 3,975,350 APrinceton Polymer Laboratories, Incorporated · 1976
- Polyurethane thickeners in latex compositions173US 4,079,028 ARohm and Haas Company · 1978
- Polyurethane thickeners for aqueous compositions153US 4,155,892 ARohm and Haas Company · 1979