C08G 18/3246
Heterocyclic, the heteroatom being oxygen or nitrogen in the form of an
Official title: {heterocyclic, the heteroatom being oxygen or nitrogen in the form of an amino group}
C08G18/3246 (Heterocyclic, the heteroatom being oxygen or nitrogen in the form of an) appears on 59 US grants and 56 published applications in this corpus.
Search patents in C08G- Granted patents
- 59
- Published applications
- 56
- Assignees
- 57
- Inventors
- 202
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 0 |
| 2016 | 1 | 6 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 3 | 4 |
| 2020 | 4 | 5 |
| 2021 | 2 | 5 |
| 2022 | 3 | 5 |
| 2023 | 5 | 5 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- In-situ formation of low density thermoplastic polyurethane flexible foams12 May 2026US 12,624,180 B2Huntsman International LLC
- Polyether based waterborne polyurethane dispersion and method for preparing the same23 Sep 2025US 12,421,391 B2Dow Global Technologies LLC
- Polyurea copolymer coating compositions and methods8 Apr 2025US 12,269,963 B2Innovative Surface Technologies, Inc.
- Aqueous polyurethane dispersions for artificial leather applications9 Jul 2024US 12,031,054 B2Dow Global Technologies LLC
- Waterborne polyurethane dispersion and method for preparing the same14 May 2024US 11,981,827 B2Dow Global Technologies LLC
- Upcycling polyurethane foam by incorporation of dynamic covalent adaptable networks17 Sep 2026US 2026/0275023 A1Ford Global Technologies, LLC
- Conductive elastic roller, process cartridge, and electrophotographic image forming apparatus6 Aug 2026US 2026/0227723 A1Canon Kabushiki Kaisha
- Thermoset polyurethane foam incorporating dynamic covalent adaptable networks25 Jun 2026US 2026/0176406 A1Ford Global Technologies, LLC
- Resin composition for preparing a thermoplastic polymer matrix11 Jun 2026US 2026/0159631 A1Covestro Deutschland AG
- Coating agent for vapor deposited film, gas barrier film, and packaging material9 Oct 2025US 2025/0313715 A1DIC Corporation
Most cited
By later US patents
- Polymeric light stabilizers for plastics55US 4,233,412 ACiba-Geigy Corporation · 1980
- Multilayer reverse osmosis membrane of polyamide-urea35US 5,019,264 AE. I. Du Pont de Nemours and Company · 1991
- Moisture curing polyurethane topcoat paint displaying geometric metamerism21US 4,199,489 AGeneral Motors Corporation · 1980
- Polycyclic diamines20US 5,310,910 AMinnesota Mining and Manufacturing Company · 1994
- Polymeric light stabilizers for plastics17US 4,233,410 ACiba-Geigy Corporation · 1980