C08G 65/26
From cyclic ethers and other compounds
Official title: from cyclic ethers and other compounds
C08G65/26 (From cyclic ethers and other compounds) appears on 2,201 US grants and 1,813 published applications in this corpus.
Search patents in C08G- Granted patents
- 2,201
- Published applications
- 1,813
- Assignees
- 774
- Inventors
- 5,027
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 44 | 0 |
| 1977 | 28 | 0 |
| 1978 | 44 | 0 |
| 1979 | 27 | 0 |
| 1980 | 34 | 0 |
| 1981 | 54 | 0 |
| 1982 | 28 | 0 |
| 1983 | 34 | 0 |
| 1984 | 35 | 0 |
| 1985 | 24 | 0 |
| 1986 | 24 | 0 |
| 1987 | 37 | 0 |
| 1988 | 25 | 0 |
| 1989 | 36 | 0 |
| 1990 | 30 | 0 |
| 1991 | 37 | 0 |
| 1992 | 43 | 0 |
| 1993 | 26 | 0 |
| 1994 | 36 | 0 |
| 1995 | 38 | 0 |
| 1996 | 40 | 0 |
| 1997 | 42 | 0 |
| 1998 | 47 | 0 |
| 1999 | 45 | 0 |
| 2000 | 49 | 0 |
| 2001 | 48 | 11 |
| 2002 | 81 | 64 |
| 2003 | 54 | 73 |
| 2004 | 58 | 62 |
| 2005 | 44 | 75 |
| 2006 | 29 | 46 |
| 2007 | 28 | 48 |
| 2008 | 28 | 51 |
| 2009 | 22 | 44 |
| 2010 | 30 | 84 |
| 2011 | 34 | 54 |
| 2012 | 31 | 61 |
| 2013 | 49 | 81 |
| 2014 | 55 | 92 |
| 2015 | 73 | 64 |
| 2016 | 76 | 79 |
| 2017 | 62 | 76 |
| 2018 | 56 | 66 |
| 2019 | 58 | 71 |
| 2020 | 62 | 98 |
| 2021 | 56 | 73 |
| 2022 | 49 | 98 |
| 2023 | 63 | 104 |
| 2024 | 62 | 86 |
| 2025 | 54 | 72 |
| 2026 | 32 | 80 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 65/2603The other compounds containing oxygen1,188
- C08G 65/2642Characterised by the catalyst used815
- C08G 65/2618The other compounds containing nitrogen318
- C08G 65/2696Characterised by the process or apparatus used191
- C08G 65/2639The other compounds containing elements other than oxygen, nitrogen or sulfur99
- C08G 65/2636The other compounds containing sulfur37
Recent patents
- Method for producing polyalkylene oxide29 Sep 2026US 12,747,321 B2Sumitomo Seika Chemicals Co., Ltd.
- Dual catalyst system for mass vinyl addition and cationic polymerizable compositions22 Sep 2026US 12,742,041 B2Promerus, LLC
- Nitrogen-branched non-linear pegylated lipid containing a tertiary amine and application thereof18 Aug 2026US 12,708,675 B2Xiamen Sinopeg Biotech Co., Ltd.
- Aromatic and aromatic-like containing media lubricants for data storage devices11 Aug 2026US 12,703,835 B2Western Digital Technologies, Inc.
- Compound, precursor compound thereof, surfactant composition, and detergent composition11 Aug 2026US 12,703,838 B2Kao Corporation
- Biodegradable polyol propoxylates, their preparation, uses, and compositions comprising them8 Oct 2026US 2026/0308484 A1BASF SE
- Process for manufacturing polyalkylene glycols1 Oct 2026US 2026/0297251 A1BASF SE
- Processes for preparing a mixture that contains a polyoxyalkylene polyol1 Oct 2026US 2026/0297325 A1Covestro Deutschland AG
- Surface active organic alkali agents1 Oct 2026US 2026/0297420 A1Ultimate Eor Services LLC
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium1 Oct 2026US 2026/0297447 A1Resonac Corporation
Most cited
By later US patents
- Process for preparing metal cyanide complex catalyst287US 5,158,922 AARCO Chemical Technology, L. P. · 1992
- Double metal cyanide complex catalysts279US 5,470,813 AARCO Chemical Technology, L. P. · 1995
- Highly active double metal cyanide catalysts250US 5,482,908 AARCO Chemical Technology, L. P. · 1996
- Polyethers and method for making the same241US 3,941,849 AThe General Tire & Rubber Company · 1976
- Heterotelechelic block copolymers and process for producing the same211US 5,925,720 A1999