C08G 18/4661
Containing three nitrogen atoms in the ring
Official title: {containing three nitrogen atoms in the ring}
C08G18/4661 (Containing three nitrogen atoms in the ring) appears on 26 US grants and 23 published applications in this corpus.
Search patents in C08G- Granted patents
- 26
- Published applications
- 23
- Assignees
- 22
- Inventors
- 87
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 4 |
| 2024 | 1 | 3 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polycarbonate polyol composition12 May 2026US 12,624,151 B2Asahi Kasei Kabushiki Kaisha
- Composition and cured product thereof20 Jan 2026US 12,528,970 B2Daicel Corporation
- Composition and cured product of same18 Feb 2025US 12,227,611 B2Daicel Corporation
- Polyisocyanate compound, polyurethane resin forming composition using same, and cured product of said composition2 Jan 2024US 11,859,044 B2Daicel Corporation
- Flame retardant and auto-catalytic polyesters for polyurethanes17 Apr 2018US 9,944,745 B2COIM ASIA PACIFIC Pte. LTD.
- Polyester polymer19 Sep 2024US 2024/0309150 A1PPG Industries Ohio, Inc.
- Polyester polyols comprising 2,5-bis(hydroxymethyl)tetrahydrofuran22 Feb 2024US 2024/0059833 A1BASF SE
- Polyester polyols comprising isosorbide, isoidide or isomannide-derived units8 Feb 2024US 2024/0043611 A1BASF SE
- Curable composition and cured product thereof23 Nov 2023US 2023/0374342 A1Daicel Corporation
- Polycarbonate polyol composition20 Jul 2023US 2023/0227598 A1Asahi Kasei Kabushiki Kaisha
Most cited
By later US patents
- UV curable high tensile strength resin composition15US 4,618,632 AWestinghouse Electric Corp. · 1986
- Cross-linkable compounds14US 4,032,565 AI.W.S. Nominee Company Limited · 1977
- Heat-resistant cross-linked polymers and the use thereof as binders9US 4,293,669 ABayer Aktiengesellschaft · 1981
- Polyester diol and derived polyurethane and acrylic copolymer9US 6,500,911 B1Daicel Chemical Industries, Ltd. · 2002
- Heat resistant resin composition7US 4,614,782 AHitachi Chemical Company, Ltd. · 1986