C08G 18/4646
Containing one nitrogen atom in the ring
Official title: {containing one nitrogen atom in the ring}
C08G18/4646 (Containing one nitrogen atom in the ring) appears on 11 US grants and 10 published applications in this corpus.
Search patents in C08G- Granted patents
- 11
- Published applications
- 10
- Assignees
- 9
- Inventors
- 27
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Imide-containing polyester polyols and intumescent rigid foams26 May 2026US 12,637,534 B2Stepan Company
- Polyurethane foam composition comprising an aromatic polyester polyol compound and products made therefrom18 Mar 2025US 12,252,578 B2Huntsman International LLC
- Polymer comprising repeating units consisting of a substituted pyrrole ring and products obtained by combining said polymers with carbon allotropes25 Oct 2022US 11,479,634 B2Politecnico Di Milano
- Biodegradable photoluminescent polymers4 Apr 2017US 9,611,354 B2Board of Regents, The University of Texas System
- Biodegradable photoluminescent polymers29 Sep 2015US 9,145,467 B2Board of Regents, The University of Texas System
- Imide-containing polyols, methods for making imide-containing polyols and methods for using imide-containing polyols9 Apr 2026US 2026/0098120 A1Dow Global Technologies LLC
- Imide-containing polyester polyols and intumescent rigid foams5 Feb 2026US 2026/0035505 A1Stepan Company
- Imide-containing polyols, method for making imide-containing polyols and method for using the imide polyols6 Feb 2025US 2025/0043058 A1Dow Global Technologies LLC
- Imide-containing polyester polyols and intumescent rigid foams29 Dec 2022US 2022/0411567 A1Stepan Company
- Polyurethane foam composition comprising an aromatic polyester polyol compound and products made therefrom1 Sep 2022US 2022/0275144 A1Huntsman International LLC
Most cited
By later US patents
- Articles coated with a cured composition of hydroxy(polyalkylenecarbonyloxy)alkyleneoxazolidine and a polyisocyanate13US 4,032,686 ARohm and Haas Company · 1977
- Modified polyurethanes with increased light stability13US 4,102,870 ACiba-Geigy Corporation · 1978
- Hydrocurable compositions of hydroxy(polyalkylenecarbonyloxy)-alkyleneoxazolidine and an isocyanate12US 4,024,117 ARohm and Haas Company · 1977
- Oxazolidine-terminated polyesters12US 4,138,545 ARohm and Haas Company · 1979
- Biodegradable photoluminescent polymers9US 8,530,611 B2Board of Regents, The University of Texas System · 2013