C08G 65/22
Cyclic ethers having at least one atom other than carbon and hydrogen
Official title: Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
C08G65/22 (Cyclic ethers having at least one atom other than carbon and hydrogen) appears on 669 US grants and 520 published applications in this corpus.
Search patents in C08G- Granted patents
- 669
- Published applications
- 520
- Assignees
- 333
- Inventors
- 1,430
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 11 | 0 |
| 1982 | 5 | 0 |
| 1983 | 12 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 12 | 0 |
| 1988 | 6 | 0 |
| 1989 | 18 | 0 |
| 1990 | 15 | 0 |
| 1991 | 7 | 0 |
| 1992 | 14 | 0 |
| 1993 | 20 | 0 |
| 1994 | 13 | 0 |
| 1995 | 12 | 0 |
| 1996 | 13 | 0 |
| 1997 | 14 | 0 |
| 1998 | 20 | 0 |
| 1999 | 15 | 0 |
| 2000 | 19 | 0 |
| 2001 | 13 | 10 |
| 2002 | 31 | 18 |
| 2003 | 15 | 30 |
| 2004 | 22 | 23 |
| 2005 | 17 | 24 |
| 2006 | 12 | 12 |
| 2007 | 8 | 7 |
| 2008 | 12 | 10 |
| 2009 | 2 | 20 |
| 2010 | 8 | 21 |
| 2011 | 9 | 13 |
| 2012 | 11 | 25 |
| 2013 | 19 | 23 |
| 2014 | 19 | 25 |
| 2015 | 21 | 25 |
| 2016 | 19 | 18 |
| 2017 | 23 | 26 |
| 2018 | 18 | 24 |
| 2019 | 18 | 34 |
| 2020 | 29 | 20 |
| 2021 | 16 | 19 |
| 2022 | 14 | 24 |
| 2023 | 13 | 24 |
| 2024 | 10 | 19 |
| 2025 | 17 | 15 |
| 2026 | 17 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Curable fluoropolyether adhesive composition and optical part6 Oct 2026US 12,753,333 B2Shin-Etsu Chemical Co., Ltd.
- Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium25 Aug 2026US 12,715,960 B2Resonac Corporation
- Curable composition28 Jul 2026US 12,692,341 B2Daicel Corporation
- Surface-treated, transportable ISO tanks and methods of reducing deposition of a friction reducer on a surface9 Jun 2026US 12,649,806 B2Aculon, Inc.
- Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium9 Jun 2026US 12,649,825 B2Resonac Corporation
- Polyol-b-polyoxazoline copolymers6 Aug 2026US 2026/0224611 A1Freie UniversitäT Berlin
- Triarylsulfonium based photoinitiators for led cure of cationic, free radical and hybrid cationic/free radical formulations6 Aug 2026US 2026/0226018 A1Arkema France
- Composition comprising (per)fluoropolyether polymers6 Aug 2026US 2026/0226363 A1SYENSQO SPECIALTY POLYMERS ITALY S.p.A.
- Cosmetic composition9 Jul 2026US 2026/0191761 A1Shiseido Company, Ltd.
- Chlorine-containing polyether polyol composition2 Jul 2026US 2026/0184840 A1Tosoh Corporation
Most cited
By later US patents
- Perfluoropolyether oligomers and polymers97US 4,647,413 AMinnesota Mining and Manufacturing Company · 1987
- Preparation of mono-substituted fluorinated oxetane prepolymers91US 5,650,483 AAerojet-General Corporation · 1997
- Cationic polymerization87US 4,393,199 AS R I International · 1983
- Process for modifying surfaces85US 8,268,939 B2Evonik Goldschmidt GmbH · 2012
- Curable material comprising silylated polymers containing urethane groups, and use thereof in sealants, adhesives, binders and/or surface modifiers77US 8,993,706 B2Evonik Degussa GmbH · 2015