C08G 18/3218
Containing cyclic groups having at least one oxygen atom in the ring
Official title: {containing cyclic groups having at least one oxygen atom in the ring}
C08G18/3218 (Containing cyclic groups having at least one oxygen atom in the ring) appears on 121 US grants and 153 published applications in this corpus.
Search patents in C08G- Granted patents
- 121
- Published applications
- 153
- Assignees
- 113
- Inventors
- 475
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 3 |
| 2006 | 1 | 5 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 4 |
| 2010 | 4 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 4 |
| 2014 | 2 | 4 |
| 2015 | 3 | 10 |
| 2016 | 5 | 10 |
| 2017 | 11 | 9 |
| 2018 | 7 | 10 |
| 2019 | 4 | 8 |
| 2020 | 6 | 14 |
| 2021 | 6 | 12 |
| 2022 | 2 | 7 |
| 2023 | 11 | 10 |
| 2024 | 8 | 11 |
| 2025 | 5 | 5 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Dual cure 3d printing resins17 Sep 2026US 2026/0275022 A1Stratasys, Inc.
- Modified pu foam13 Aug 2026US 2026/0234350 A1Wenatex Forschung - Entwicklung - Produktion GmbH
- Polyurethane system, polyurethane polymer and adhesive thereof30 Jul 2026US 2026/0217894 A1
- Copolymer and preparation method of copolymer30 Jul 2026US 2026/0217899 A1LG Chem.Ltd.
- Composition for forming eco-friendly polyurethane foam having improved insulation properties and method for preparing polyurethane foam2 Apr 2026US 2026/0092174 A1Samyang Corporation
Most cited
By later US patents
- Methylolated mono- and oligosaccharides70US 4,322,523 ABayer Aktiengesellschaft · 1982
- Method of preparing cyclodextrin-coated surfaces65US 4,917,956 AUop LLC · 1990
- Process for the preparation of polyurethane plastics using dianhydro-hexite diols29US 4,383,051 ABayer Aktiengesellschaft · 1983
- Composition for bonding solid lignocellulosic materials26US 4,944,823 ACarbocol Inc. · 1990
- Polyurethanes based on 1;4-3:6 dianhydrohexitols25US 4,443,563 AThe Dow Chemical Company · 1984