C08G 18/3844
Containing one nitrogen atom in the ring
Official title: {containing one nitrogen atom in the ring}
C08G18/3844 (Containing one nitrogen atom in the ring) appears on 73 US grants and 52 published applications in this corpus.
Search patents in C08G- Granted patents
- 73
- Published applications
- 52
- Assignees
- 68
- Inventors
- 259
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 1 | 8 |
| 2017 | 3 | 4 |
| 2018 | 1 | 3 |
| 2019 | 6 | 6 |
| 2020 | 2 | 1 |
| 2021 | 2 | 6 |
| 2022 | 3 | 4 |
| 2023 | 5 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dihydroxy lactam based polymers, compositions and applications thereof17 Feb 2026US 12,552,931 B2ISP Investments Inc.
- Polyurethane foams with reduced aromatic amine content19 Aug 2025US 12,391,787 B2BASF SE
- Compound and polymer compound containing the compound19 Nov 2024US 12,145,938 B2Japan Science and Technology Agency
- Method for reduction of aldehyde emission in polyurethane comprising materials29 Oct 2024US 12,129,330 B2Huntsman International LLC
- Polymerizable composition for optical material, optical material, and producing method thereof19 Dec 2023US 11,845,828 B2Mitsui Chemicals, Inc.
- Imide-containing polyols, methods for making imide-containing polyols and methods for using imide-containing polyols9 Apr 2026US 2026/0098120 A1Dow Global Technologies LLC
- Polyurethanes, Polishing Articles and Polishing Systems Therefrom and Method of Use Thereof22 Jan 2026US 2026/0022201 A13M Innovative Properties Company
- Polymer electrolyte, electrode active material binder, and secondary battery30 Oct 2025US 2025/0337009 A1Canon Kabushiki Kaisha
- Thermally stable monomers and methods of use thereof18 Sep 2025US 2025/0289929 A1
- Compound and polymer compound containing the compound4 Jul 2024US 2024/0217976 A2Japan Science and Technology Agency
Most cited
By later US patents
- Two-part moisture curable polyurethane adhesive71US 5,603,798 AThe Dow Chemical Company · 1997
- Light-absorbing polyurethane compositions and thermoplastic polymers colored therewith34US 5,194,463 AEastman Kodak Company · 1993
- Permanently stabilized polyurethanes28US 4,145,512 ABayer Aktiengesellschaft · 1979
- Two-part moisture curable polyurethane adhesive28US 5,672,652 AEssex Specialty Products, Inc. · 1997
- Bis-oxazolidines, oxazolidine mixtures consisting essentially thereof and their use as hardeners for plastics precursors containing isocyanate groups25US 5,189,176 ABayer Aktiengesellschaft · 1993