C11D 3/3726
Polyurethanes
Official title: {Polyurethanes}
C11D3/3726 (Polyurethanes) appears on 163 US grants and 210 published applications in this corpus.
Search patents in C11D- Granted patents
- 163
- Published applications
- 210
- Assignees
- 88
- Inventors
- 564
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 4 |
| 2003 | 3 | 10 |
| 2004 | 6 | 11 |
| 2005 | 9 | 11 |
| 2006 | 6 | 11 |
| 2007 | 4 | 9 |
| 2008 | 5 | 9 |
| 2009 | 8 | 8 |
| 2010 | 7 | 16 |
| 2011 | 12 | 10 |
| 2012 | 5 | 8 |
| 2013 | 2 | 7 |
| 2014 | 5 | 7 |
| 2015 | 2 | 6 |
| 2016 | 9 | 4 |
| 2017 | 5 | 10 |
| 2018 | 6 | 6 |
| 2019 | 3 | 5 |
| 2020 | 3 | 6 |
| 2021 | 3 | 6 |
| 2022 | 2 | 9 |
| 2023 | 5 | 13 |
| 2024 | 2 | 9 |
| 2025 | 5 | 7 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biodegradable polyurea/polyurethane microcapsules23 Jun 2026US 12,661,627 B2Symrise AG
- Fabric care composition with delivery particles12 May 2026US 12,624,312 B2The Procter & Gamble Company
- Cleaning compositions31 Mar 2026US 12,590,271 B2Aspen Pumps Limited
- Articles of manufacture with polyurea capsules cross-linked with chitosan24 Mar 2026US 12,582,956 B2
- Polyurethane redeposition inhibiting polymers and detergent compositions containing same20 Jan 2026US 12,529,014 B2Lubrizol Advanced Materials, Inc.
- Biodegradable microcapsules comprising beta-1-4 non-ionic polysaccharide3 Sep 2026US 2026/0258325 A1International Flavors & Fragrances Inc.
- Fabric care composition with delivery particles27 Aug 2026US 2026/0250603 A1The Procter & Gamble Company
- 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.
- Articles of Manufacture with Polyurea Capsules Cross-linked with Chitosan25 Jun 2026US 2026/0175188 A1Encapsys, LLC
Most cited
By later US patents
- 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
- Gel compositions with depot action based on a polyurethane matrix and relatively high molecular weight polyols and containing active ingredients, and a process for their preparation110US 4,404,296 ABayer Aktiengesellschaft · 1983
- Skin cleansing composition for removing ink51US 6,265,363 B1GOJO Industries, Inc. · 2001
- Method of applying a design to a surface51US 7,556,841 B2S. C. Johnson & Son, Inc. · 2009