C08G 65/331
Containing oxygen
Official title: containing oxygen {(cyclic ether compounds C08G65/26)}
C08G65/331 (Containing oxygen) appears on 1,175 US grants and 1,167 published applications in this corpus.
Search patents in C08G- Granted patents
- 1,175
- Published applications
- 1,167
- Assignees
- 679
- Inventors
- 3,244
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 5 | 0 |
| 1978 | 13 | 0 |
| 1979 | 15 | 0 |
| 1980 | 11 | 0 |
| 1981 | 14 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 15 | 0 |
| 1991 | 12 | 0 |
| 1992 | 17 | 0 |
| 1993 | 16 | 0 |
| 1994 | 27 | 0 |
| 1995 | 13 | 0 |
| 1996 | 29 | 0 |
| 1997 | 22 | 0 |
| 1998 | 17 | 0 |
| 1999 | 14 | 0 |
| 2000 | 18 | 0 |
| 2001 | 18 | 11 |
| 2002 | 30 | 29 |
| 2003 | 26 | 35 |
| 2004 | 18 | 41 |
| 2005 | 29 | 36 |
| 2006 | 21 | 27 |
| 2007 | 21 | 20 |
| 2008 | 11 | 36 |
| 2009 | 15 | 43 |
| 2010 | 25 | 74 |
| 2011 | 35 | 48 |
| 2012 | 31 | 40 |
| 2013 | 38 | 43 |
| 2014 | 40 | 43 |
| 2015 | 40 | 64 |
| 2016 | 59 | 60 |
| 2017 | 51 | 56 |
| 2018 | 38 | 49 |
| 2019 | 49 | 56 |
| 2020 | 32 | 61 |
| 2021 | 43 | 63 |
| 2022 | 35 | 57 |
| 2023 | 31 | 41 |
| 2024 | 38 | 51 |
| 2025 | 45 | 55 |
| 2026 | 20 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium8 Sep 2026US 12,729,347 B2Resonac Corporation
- Nitrogen-branched non-linear pegylated lipid containing a tertiary amine and application thereof18 Aug 2026US 12,708,675 B2Xiamen Sinopeg Biotech Co., Ltd.
- Marine-biodegradation accelerator11 Aug 2026US 12,703,793 B2Nisshinbo Holdings Inc.
- Esterified oil soluble polyalkylene glycols21 Jul 2026US 12,686,830 B2Dow Global Technologies LLC
- Cationic lipid, liposome containing cationic lipid, and nucleic-acid pharmaceutical composition containing liposome and formulation and application thereof9 Jun 2026US 12,648,908 B2Xiamen Sinopeg Biotech Co., Ltd.
- Compound, coating composition and film8 Oct 2026US 2026/0308409 A1Industrial Technology Research Institute
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium27 Aug 2026US 2026/0250591 A1Resonac Corporation
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium27 Aug 2026US 2026/0250595 A1Resonac Corporation
- Polyurethane urea and its preparation method20 Aug 2026US 2026/0242529 A1BASF SE
- Polyether ester polyol, preparation method therefor, and method for preparing polyurethane elastomer by using polyether ester polyol13 Aug 2026US 2026/0234325 A1Zhengzhou Zhongyuan Spandex Engineering Technology Co., Ltd
Most cited
By later US patents
- Adhesive formulations1,017US 8,349,987 B2Covidien LP · 2013
- Non-antigenic branched polymer conjugates604US 5,643,575 AEnzon, Inc. · 1997
- Poly(ethylene glycol) aldehyde hydrates and related polymers and applications in modifying amines373US 5,990,237 AShearwater Polymers, Inc. · 1999
- Water-soluble non-antigenic polymer linkable to biologically active material304US 6,113,906 AEnzon, Inc. · 2000
- Non-antigenic branched polymer conjugates264US 5,919,455 AEnzon, Inc. · 1999