C08G 18/3842
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}
C08G18/3842 (Containing heterocyclic rings having at least one nitrogen atom in the ring) appears on 325 US grants and 211 published applications in this corpus.
Search patents in C08G- Granted patents
- 325
- Published applications
- 211
- Assignees
- 180
- Inventors
- 878
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 11 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 6 |
| 2003 | 8 | 6 |
| 2004 | 4 | 4 |
| 2005 | 2 | 7 |
| 2006 | 3 | 7 |
| 2007 | 2 | 2 |
| 2008 | 3 | 3 |
| 2009 | 3 | 6 |
| 2010 | 3 | 13 |
| 2011 | 1 | 4 |
| 2012 | 5 | 5 |
| 2013 | 6 | 8 |
| 2014 | 6 | 7 |
| 2015 | 5 | 4 |
| 2016 | 6 | 12 |
| 2017 | 8 | 13 |
| 2018 | 4 | 9 |
| 2019 | 12 | 17 |
| 2020 | 8 | 6 |
| 2021 | 7 | 14 |
| 2022 | 7 | 12 |
| 2023 | 11 | 22 |
| 2024 | 8 | 9 |
| 2025 | 15 | 7 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- In-situ formation of low density thermoplastic polyurethane flexible foams12 May 2026US 12,624,180 B2Huntsman International LLC
- Supramolecular biomedical polymers10 Mar 2026US 12,570,804 B2SupraPolix B.V.
- Coating composition3 Mar 2026US 12,565,473 B2Covestro (Netherlands) B.V.
- Conductive elastic roller, process cartridge, and electrophotographic image forming apparatus6 Aug 2026US 2026/0227723 A1Canon Kabushiki Kaisha
- A 2k clearcoat coating composition and its application thereof2 Jul 2026US 2026/0184950 A1BASF Coatings GmbH
- Aerosol composition25 Jun 2026US 2026/0174692 A1UPyTher B.V.
- Imide-containing polyols, methods for making imide-containing polyols and methods for using imide-containing polyols9 Apr 2026US 2026/0098120 A1Dow Global Technologies LLC
- Hydrogel composition for the treatment of peritoneal diseases5 Feb 2026US 2026/0034222 A1UPyTher B.V.
Most cited
By later US patents
- UV absorbing polymer188US 6,252,032 B1MiniMed Inc. · 2001
- Silicone polyurethane copolymers containing oxygen sensitive phosphorescent dye compounds94US 5,155,149 ABOC Health Care, Inc. · 1992
- Two-part moisture curable polyurethane adhesive71US 5,603,798 AThe Dow Chemical Company · 1997
- Tri-carbamate-functional crosslinking agents59US 5,336,566 ABASF SE · 1994
- Process for the preparation of compounds which contain hydantoin rings58US 3,939,122 ABayer Aktiengesellschaft · 1976