C08G 18/7875
Containing heterocyclic rings having at least one nitrogen atom in the ring
Official title: {containing heterocyclic rings having at least one nitrogen atom in the ring}
C08G18/7875 (Containing heterocyclic rings having at least one nitrogen atom in the ring) appears on 137 US grants and 119 published applications in this corpus.
Search patents in C08G- Granted patents
- 137
- Published applications
- 119
- Assignees
- 72
- Inventors
- 386
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 2 | 6 |
| 2011 | 2 | 2 |
| 2012 | 1 | 4 |
| 2013 | 1 | 1 |
| 2014 | 3 | 4 |
| 2015 | 4 | 8 |
| 2016 | 4 | 8 |
| 2017 | 5 | 10 |
| 2018 | 6 | 9 |
| 2019 | 6 | 9 |
| 2020 | 6 | 8 |
| 2021 | 5 | 10 |
| 2022 | 8 | 8 |
| 2023 | 6 | 3 |
| 2024 | 2 | 9 |
| 2025 | 5 | 2 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Distillation of polyisocyanates19 May 2026US 12,630,662 B2Covestro Deutschland AG
- Modified polyisocyanate19 May 2026US 12,630,667 B2Covestro Deutschland AG
- Water-dispersible modified polyisocyanates3 Mar 2026US 12,565,559 B2Covestro Deutschland AG
- Two-component solvent-based coating composition, method for coating a substrate, coated substrate, and use of such coating composition for improving erosion resistance1 Jul 2025US 12,344,761 B2Akzo Nobel Coatings International B. V.
- Polyisocyanate composition, film-forming composition, film, film laminate, adhesive resin composition and adhesive resin-cured product, coating composition and coating material-cured product24 Jun 2025US 12,338,314 B2Asahi Kasei Kabushiki Kaisha
- Resin composition for preparing a thermoplastic polymer matrix11 Jun 2026US 2026/0159631 A1Covestro Deutschland AG
- Coating composition and in-mold coating method22 Jan 2026US 2026/0021615 A1Kansai Paint Co., Ltd.
- Two-component mixed polyurea resin composition production raw material and polyurea resin composition20 Nov 2025US 2025/0354029 A1Unitika Ltd.
- Coreactive materials and methods for three-dimensional printing17 Apr 2025US 2025/0122389 A1PPG Industries Ohio, Inc.
- Curable film-forming compositions and coated articles prepared therewith10 Oct 2024US 2024/0336806 A1PPG Industries Ohio, Inc.
Most cited
By later US patents
- Triazine crosslinking agents and curable compositions119US 5,084,541 AAmerican Cyanamid Company · 1992
- Isocyanate trimers containing iminooxadiazine dione groups, their preparation and use99US 5,914,383 ABayer Aktiengesellschaft · 1999
- Triazine crosslinking agents and curable compositions containing the same92US 4,939,213 AAmerican Cyanamid Company · 1990
- Holographic media and photopolymers92US 8,329,773 B2Bayer MaterialScience AG · 2012
- Process for the preparation of compounds which contain hydantoin rings58US 3,939,122 ABayer Aktiengesellschaft · 1976