C08G 63/58
Cyclic ethers
Official title: Cyclic ethers (C08G59/00 takes precedence); Cyclic carbonates; Cyclic sulfites {; Cyclic orthoesters}
C08G63/58 (Cyclic ethers) appears on 67 US grants and 30 published applications in this corpus.
Search patents in C08G- Granted patents
- 67
- Published applications
- 30
- Assignees
- 48
- Inventors
- 189
- Latest grant
- 25 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 8 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 3 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 5 |
| 2022 | 2 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Poly(propylene fumarate)-based copolymers for 3D printing applications25 Mar 2025US 12,258,443 B2The University of Akron
- Method for producing functionalized polyesters22 Oct 2024US 12,122,871 B2Henkel AG & Co. KGaA
- Organic metal-free catalysts with electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof10 Oct 2023US 11,780,961 B2Zhejiang University
- Star-shaped poly(propylene fumarate) copolymers for 3D printing applications30 May 2023US 11,661,477 B2The University of Akron
- Composition for forming resist underlayer film and method for forming resist pattern using same3 Jan 2023US 11,542,366 B2Nissan Chemical Industries, Ltd.
- Ethylenically unsaturated polyester resin composition8 Oct 2026US 2026/0308373 A1BASF SE
- Polyester-polyether solid article comprising pheromone5 Jun 2025US 2025/0176537 A1The Procter & Gamble Company
- Polyester-polyether solid article comprising hydrophobic material5 Jun 2025US 2025/0177597 A1The Procter & Gamble Company
- Polyester copolymer and coating compositions therefrom having improved corrosion resistance18 Jul 2024US 2024/0239954 A1Swimc LLC
- Synthesis and 3d printing of triblock copolymer through alternating ring-opening copolymerization of epoxides with saturated and unsaturated cyclic anhydride6 Jun 2024US 2024/0182747 A1Duke University
Most cited
By later US patents
- Polyester process189US 6,063,827 AXerox Corporation · 2000
- Radiation curable resins comprising hyperbranched polyesters57US 5,834,118 ANeste Oy of Keilaniemi · 1998
- Cured or uncured aromatic polyester composition and process for its production41US 4,269,947 ATeijin Limited · 1981
- Water-dilutable polyester, process for the preparation thereof and the use thereof37US 4,390,688 AHoechst Aktiengesellschaft · 1983
- Epoxy ester copolymer soluble in water with the aid of an amine32US 4,247,659 ADeSoto, Inc. · 1981