C08G 65/16
Cyclic ethers having four or more ring atoms
C08G65/16 (Cyclic ethers having four or more ring atoms) appears on 567 US grants and 467 published applications in this corpus.
Search patents in C08G- Granted patents
- 567
- Published applications
- 467
- Assignees
- 266
- Inventors
- 1,303
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 7 | 0 |
| 1980 | 14 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 16 | 0 |
| 1993 | 14 | 0 |
| 1994 | 7 | 0 |
| 1995 | 12 | 0 |
| 1996 | 5 | 0 |
| 1997 | 17 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 18 | 0 |
| 2001 | 13 | 5 |
| 2002 | 25 | 12 |
| 2003 | 9 | 24 |
| 2004 | 16 | 29 |
| 2005 | 17 | 22 |
| 2006 | 18 | 22 |
| 2007 | 12 | 15 |
| 2008 | 7 | 23 |
| 2009 | 13 | 16 |
| 2010 | 10 | 26 |
| 2011 | 18 | 14 |
| 2012 | 6 | 21 |
| 2013 | 18 | 13 |
| 2014 | 13 | 20 |
| 2015 | 18 | 21 |
| 2016 | 13 | 17 |
| 2017 | 12 | 18 |
| 2018 | 15 | 21 |
| 2019 | 12 | 16 |
| 2020 | 13 | 28 |
| 2021 | 16 | 12 |
| 2022 | 9 | 22 |
| 2023 | 10 | 17 |
| 2024 | 9 | 14 |
| 2025 | 12 | 12 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Epoxy resin composition8 Sep 2026US 12,729,269 B2Threebond Co., Ltd.
- Copolyetherester1 Sep 2026US 12,723,153 B2Celanese Polymers Holding, Inc.
- Polyetherester21 Jul 2026US 12,686,769 B2Celanese Polymers Holding, Inc.
- Cationic curing agent, method for producing same and cationically curable composition28 Apr 2026US 12,612,516 B2Dexerials Corporation
- Epoxide functionalized polyaromatic feedstock and polymers derived therefrom10 Mar 2026US 12,570,623 B2ExxonMobil Technology and Engineering Company
- Acid-resistant polyurethane and method for producing the same20 Aug 2026US 2026/0242531 A1Hodogaya Chemical Co., Ltd.
- Epoxy-based uv-vis-curable encapsulant compositions13 Aug 2026US 2026/0234322 A1Sicpa Holding SA
- Method for the deactivation of an acid catalyst during the production process of a polyoxymethylene copolymer23 Jul 2026US 2026/0209432 A1Base SE
- Resin composition, cured product, scintillator panel, and inductor2 Apr 2026US 2026/0092142 A1Toray Industries, Inc.
- Cationically polymerizable resin composition for three-dimensional photofabrication and method for producing three-dimensional photofabricated product5 Feb 2026US 2026/0035592 A1Tokuyama Dental Corporation
Most cited
By later US patents
- Method for producing a non greasy protective and emollient film on the skin377US 4,608,392 ASociete Anonyme dite: L'Oreal · 1986
- Cationically polymerizable compositions containing group VIa onium salts166US 4,058,400 AGeneral Electric Company · 1977
- Preparation of mono-substituted fluorinated oxetane prepolymers91US 5,650,483 AAerojet-General Corporation · 1997
- Cationic polymerization87US 4,393,199 AS R I International · 1983
- Compositions which undergo light-induced cationic curing and their use82US 6,084,004 AESPE Dental AG · 2000