C08G 18/4883
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}
C08G18/4883 (Containing cyclic groups having at least one oxygen atom in the ring) appears on 169 US grants and 177 published applications in this corpus.
Search patents in C08G- Granted patents
- 169
- Published applications
- 177
- Assignees
- 113
- Inventors
- 537
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 4 |
| 2004 | 3 | 2 |
| 2005 | 4 | 8 |
| 2006 | 1 | 5 |
| 2007 | 1 | 14 |
| 2008 | 1 | 3 |
| 2009 | 0 | 7 |
| 2010 | 5 | 5 |
| 2011 | 4 | 6 |
| 2012 | 4 | 1 |
| 2013 | 7 | 7 |
| 2014 | 5 | 7 |
| 2015 | 4 | 8 |
| 2016 | 7 | 11 |
| 2017 | 9 | 7 |
| 2018 | 4 | 9 |
| 2019 | 3 | 11 |
| 2020 | 11 | 11 |
| 2021 | 5 | 10 |
| 2022 | 6 | 13 |
| 2023 | 10 | 7 |
| 2024 | 7 | 12 |
| 2025 | 8 | 3 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrophilic acrylic-modified polyurethane and method for preparing same, and water-based paint composition prepared therefrom and manufacturing method thereof22 Sep 2026US 12,742,036 B2Samyang Corporation
- Spray-applied polyurethane insulation material for tunnels in cold regions, its application, and its construction method27 Jan 2026US 12,534,629 B2China Academy of Railway Sciences Corporation Limited
- Polyol composition using glucose-containing saccharide composition, and polyurethane foam including same23 Dec 2025US 12,503,547 B2Samyang Corporation
- Schiff base oligomers16 Dec 2025US 12,497,489 B2The Boeing Company
- Process for producing a low density free-rise polyurethane foam30 Sep 2025US 12,428,516 B2Proprietect L.P.
- Closed-cell water-blown rigid polyurethane foams and methods for their production20 Aug 2026US 2026/0242530 A1Covestro LLC
- Aqueous polyurethane-polyurea dispersion16 Jul 2026US 2026/0201106 A1Covestro Deutschland AG
- Polyurethane foam-forming reaction mixtures, polyurethane foams formed therefrom, and methods for their production and use16 Jul 2026US 2026/0201107 A1Covestro LLC
- Biodegradable polyurethane and method for preparing the same2 Jul 2026US 2026/0184850 A1Hyundai Motor Company
- Polyol composition and preparation method therefor, composition for polyurethane preparation comprising polyol composition, and battery module5 Mar 2026US 2026/0062510 A1Pucore Co., Ltd.
Most cited
By later US patents
- Process for the preparation of polyurethane rigid foams having a low thermal conductivity and their use80US 5,096,933 A1992
- Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof71US 5,597,661 AShowa Denko K. K. · 1997
- Method of preparing cyclodextrin-coated surfaces65US 4,917,956 AUop LLC · 1990
- Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof56US 5,665,490 AShowa Denko K. K. · 1997
- Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof47US 5,874,184 AShowa Denko K. K. · 1999