C08G 18/3225
Polyamines
Official title: {Polyamines}
C08G18/3225 (Polyamines) appears on 1,102 US grants and 1,281 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,102
- Published applications
- 1,281
- Assignees
- 549
- Inventors
- 3,319
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 16 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 19 | 0 |
| 1989 | 20 | 0 |
| 1990 | 19 | 0 |
| 1991 | 21 | 0 |
| 1992 | 25 | 0 |
| 1993 | 12 | 0 |
| 1994 | 20 | 0 |
| 1995 | 8 | 0 |
| 1996 | 14 | 0 |
| 1997 | 14 | 0 |
| 1998 | 11 | 0 |
| 1999 | 24 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 1 |
| 2002 | 16 | 13 |
| 2003 | 13 | 27 |
| 2004 | 14 | 28 |
| 2005 | 4 | 16 |
| 2006 | 15 | 33 |
| 2007 | 10 | 28 |
| 2008 | 10 | 26 |
| 2009 | 7 | 31 |
| 2010 | 20 | 43 |
| 2011 | 20 | 32 |
| 2012 | 21 | 52 |
| 2013 | 22 | 26 |
| 2014 | 35 | 51 |
| 2015 | 41 | 47 |
| 2016 | 33 | 51 |
| 2017 | 45 | 56 |
| 2018 | 35 | 74 |
| 2019 | 51 | 75 |
| 2020 | 53 | 91 |
| 2021 | 59 | 111 |
| 2022 | 58 | 99 |
| 2023 | 52 | 99 |
| 2024 | 58 | 70 |
| 2025 | 56 | 45 |
| 2026 | 31 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cover coating with good adhesion on polyurethane and polyurea membranes6 Oct 2026US 12,753,267 B2Sika Technology AG
- Aqueous self-crosslinkable polyurethane dispersions22 Sep 2026US 12,742,035 B2BASF SE
- Dispersions that are substantially free of volatile organic compounds and that have a high solids content8 Sep 2026US 12,729,266 B2Stahl International B.V.
- Ink composition for 3D printing based on urea reaction and the 3D printing method using the same25 Aug 2026US 12,716,005 B23Dmaterials Co., Ltd.
- Fiber base material and artificial leather11 Aug 2026US 12,703,767 B2DIC Corporation
- A waterborne coating composition and its applications thereof24 Sep 2026US 2026/0286147 A1BASF Coatings GmbH
- Upcycling polyurethane foam by incorporation of dynamic covalent adaptable networks17 Sep 2026US 2026/0275023 A1Ford Global Technologies, LLC
- Aqueous dispersion of polyurethane resin and coating agent3 Sep 2026US 2026/0258186 A1DKS Co. Ltd.
- Polyurethane-polyurea aqueous dispersion, and preparation method therefor and use thereof27 Aug 2026US 2026/0250455 A1Wanhua Chemical Group Co., Ltd.
- Process for producing low gloss coating surface by radiation curing20 Aug 2026US 2026/0241413 A1Covestro LLC
Most cited
By later US patents
- Polyurea composition suitable for a golf ball cover525US 5,484,870 AAcushnet Company · 1996
- Rim process for the production of elastic moldings234US 4,218,543 ABayer Aktiengesellschaft · 1980
- Golf ball comprising anionic polyurethane or polyurea ionomers and method of making the same185US 6,207,784 B1Acushnet Company · 2001
- Ultrathin film, process for production thereof, and use thereof for concentrating a specified gas in a gaseous mixture121US 4,493,714 ATeijin Limited · 1985
- Microcapsules with readily adjustable release rates88US 5,925,595 AMonsanto Company · 1999