C08G 18/6423
Polyalkylene polyamines
Official title: {Polyalkylene polyamines; polyethylenimines; Derivatives thereof (polyamides or polyesteramides C08G18/60)}
C08G18/6423 (Polyalkylene polyamines) appears on 51 US grants and 68 published applications in this corpus.
Search patents in C08G- Granted patents
- 51
- Published applications
- 68
- Assignees
- 63
- Inventors
- 245
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 2 | 3 |
| 2016 | 0 | 3 |
| 2017 | 2 | 4 |
| 2018 | 2 | 1 |
| 2019 | 1 | 2 |
| 2020 | 4 | 6 |
| 2021 | 3 | 7 |
| 2022 | 2 | 6 |
| 2023 | 4 | 6 |
| 2024 | 3 | 4 |
| 2025 | 6 | 5 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Silicone polyurea block copolymer coating compositions and methods5 May 2026US 12,616,777 B2Innovative Surface Technologies, Inc.
- Curable compositions and articles prepared therefrom10 Mar 2026US 12,570,787 B2Transitions Optical, Inc.
- Surface modified microcapsules28 Oct 2025US 12,454,791 B2International Flavors & Fragrances Inc.
- Microcapsule compositions stabilized with viscosity control agents23 Sep 2025US 12,419,815 B2International Flavors & Fragrances Inc.
- Fluid set for inkjet printing23 Sep 2025US 12,421,406 B2Agfa NV
- Gas barrier coating material and gas barrier laminate20 Aug 2026US 2026/0242631 A1Rm Tohcello Co., Ltd.
- Water-borne multi-pack type coating composition and method for producing coated article13 Aug 2026US 2026/0234435 A1Nippon Paint Automotive Coatings Co., Ltd.
- Microcapsules13 Aug 2026US 2026/0234512 A1Iberchem S.A.U.
- Solvent-borne coating compositions comprising a water-dispersible polyisocyanate26 Mar 2026US 2026/0085147 A1PPG Industries Ohio, Inc.
- Method for preparing an aminosuccinic resin with a low amine value19 Mar 2026US 2026/0078213 A1Arkema France
Most cited
By later US patents
- Hydrophilic or hydrogel carrier systems such as coatings, body implants and other articles353US 3,975,350 APrinceton Polymer Laboratories, Incorporated · 1976
- Support matrices for immobilized enzymes49US 4,141,857 AUop LLC · 1979
- Process for producing semipermeable membrane17US 4,244,817 ANippon Zeon Co., Ltd. · 1981
- Process for crosslinking polyamines15US 4,478,938 AThe Dow Chemical Company · 1984
- Composition containing dispersed pigment and preparation method thereof13US 4,735,984 ANippon Paint Co., Ltd. · 1988